At leaving the party, ask questions (3)
I believe the answer is:
pry
'ask questions' is the definition.
'pry' can be an answer for 'ask' (prying is a kind of asking). I'm unsure of the 'questions' bit.
'at leaving the party' is the wordplay.
'leaving' is a deletion indicator.
'party' with 'at' removed is 'PRY'.
Can you help me to learn more?
(Other definitions for pry that I've seen before include "Be inquisitive" , "Intrusively enquire" , "Look intrusively" , "Look inquisitively into private matters" , "Intrude" .)