Be overly inquisitive (3)
I believe the answer is:
pry
'be overly inquisitive' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for pry that I've seen before include "Snoop or lever" , "Peer impertinently, stick nose in" , "act curiously" , "Intrude" , "Stick one's nose in" .)