Apt to pry (4)
I believe the answer is:
nosy
'apt to pry' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for nosy that I've seen before include "Meddlesome" , "Inquisitive in nasal manner" , "Offensively curious or inquisitive" , "Fragrant" , "Intrusive in nasal way" .)