Brendan, the first word is in row 3 (which start at 13 Across), the other word, the one that's also a clue answer, is further down - and I think he flew between them...
I'll do some research/Googling, see how that stuff popped up yesrerday.
20 D. The second and third letters are 'still stuck up' - ie the three letter word meaning 'still', with the 'e' removed. The other four letters must be the 'unfinished protective coat'. The whole thing is a 'needle'.