April
If you want to give the answers to people who don't give the clue, could you post the clue with the answer so that the rest of us aren't left in the dark grinding our teeth?
Grrr!
35 down is TETRAGRAM (four letter word)
I'd also put Examine instead of investigate! So was stuck with one more 'impossible' clue to crack...but thanks for solving QUEST for me!!