A quick rinse-down for you who got stuck:
ACROSS
2A2ALap-dancing ultimately has its high points! (4)[----]. anag. LAP7ABacked friend in circuit (3)[---] + ultimately "has" = S. 4A4AIn Spain, the blade is small and delicate (5)[-----]. In Spain, "the" = EL + blade = FIN. 7A7ABacked friend in circuit (3)[---]. Reversal of friend = PAL. 8A8AArtist's way of working by the Seine (5)[-----]. Way of working (modus operandi) = MO + Seine = NET. 9A9ALead to silver... sticky stuff to lead? (4)[----]. Lead to silver = S + sticky stuff = TAR.
DOWN
1D1DRay's smile? (4)[----]. double def. 2D2DBudget that sounds like a good deal? (5)[-----]. homophone of "a good deal" = "A LOT". 3D3DCircular figure for every blowhard! (5)[-----]. Circular figure = PI + for every = PER. 5D5DCool, strong, and lacking depth (3)[---]. strong = F + removal of depth (= d) from "and". 6D6DBrief message that may be sung? (4)[----]. double def.