First full cryptic! I'm hoping to do one of these a month.
I didn't use a reference dictionary (I'll change that in the future) but I've checked some of the nastier clues against Chambers' online tools (dictionary, thesaurus and biographical dictionary) and they seem to be fine:
https://chambers.co.uk/search/
Merriam-Webster should also work, as well as regular Google searches for some of the pop-culture-y clues.