As a newcomer, it would seem rude to ask for help until I've offered some!
For those still struggling to make sense of that last unclued across light ?A?TON from Greedy Kite's original thread-starter - and of the spare four letters to be associated with it, correctly identified by Orson as N,F,I & K (though not
necessarily in that order): you might find it helpful to think film. You want the eponymous protagonist of a 1991 film by a celebrated pairing. Hope that helps.