1831 tragic bel canto opera composed by Vincenzo Bellini, which includes the noted aria 'Casta diva' (5)

Southern constellation, depicted as the 'altar' of the gods, containing astronomical features such as Gliese 676 and Westerlund 1 (3)

see 8A.

with 6D and 7A: The ____ ___ ____ ______, satirical, posthumously-published, semi-autobiographical novel by Samuel Butler (3,2,3,5)

British legal proviso allowing for inheritance tax to be written off in exchange for notable valuable objects (init.); or, injury or illness (3)

with 21A: 1979 satirical Hal Ashby film starring Peter Sellers (5,5)

Lennon-penned Rubber Soul cut, the last song written for that album (4)

Descriptor of horse coloration denoting an even mix of white and color throughout the body (4)

1830 short story by Honoré de Balzac whose title translates to 'Farewell' (5)

Abre los _____, 1997 Alejandro Amenábar film remade in 2001 as the English-language Vanilla Sky (4)

The national currency of Thailand, equivalent to 100 satang (4)

see 13A.

A medical order to withhold life-extending resuscitative measures upon cardiac flatline (3, init.)

Spirit liberated from Sycorax's imprisonment into Prospero's service, ultimately emancipated at the conclusion of The Tempest (5)

1998 young adult novel by Louis Sachar centred around a correctional boot camp in Texas (5)

Surname of Japanese artist, activist and musician with US Dance number one singles including 'I'm Not Getting Enough' and 'Walking on Thin Ice' (3)

Italian fashion house founded in 1913 in Milan whose subsidiaries include Miu Miu (5)

Australian state, the most populous in the country (3, init.)

The surname of the central family in HBO's acclaimed comedy-drama Succession (3)

_____ mit Schädel, famous bronze by Hugo Rheinhold depicting a chimpanzee contemplating a skull (4)

The portion of a letterform that overhangs the typeblock, so designed as to reduce whitespace between letters (4)

Synth-pop group whose 1985 debut album Hunting High and Low made them the first Norwegian act to be Grammy-nominated (1-2)

see 8A.

Large city on the Gulf of Guinea that is at the centre of Côte d'Ivoire's economy (7)

Administrative subdivision of various post-Soviet states; Russian examples included Kaliningrad, Arkhangelsk and Magadan (6)

Historical romance set in the late 12th century; the tenth of Sir Walter Scott's Waverley novels (7)

Discontinued suite of Apple software that was once home to products including iTunes and GarageBand (5)

Surname shared by the composer of 'Silent Night', the antagonist of Die Hard, and the inventer of the View-Master (6)

Military science-fiction video game franchise whose popularity ensured the early success of Microsoft's Xbox console (4)

Coarse file used in shaping materials such as wood, alabaster and horse hoof. (4)

The overall antagonist of manga series Jojo's Bizarre Adventure; or, American heavy metal band formed in 1982 by two former members of Black Sabbath (3)

Letter of the Greek alphabet with a numeral value of 100, frequently used to represent density (3)

Brother of (and frequent lyricist for) George Gershwin (3)

Tributary of the Thames originating in Bedfordshire; or, first name of Filipino actress Salonga who provided singing voices for Aladdin's Jasmine and the title character of Mulan (3)