Eating heartlessly, being inquisitive (6)
I believe the answer is:
nosing
'eating heartlessly being inquisitive' is the definition.
I can't judge whether this definition defines the answer.
'eating heartlessly' is the wordplay.
'eating' becomes 'noshing' (noshing is a kind of eating).
'heartlessly' says to hollow out the word (remove centre letters).
'noshing' with its centre taken out is 'NOSING'.
Can you help me to learn more?
(Other definitions for nosing that I've seen before include "Moulding edge; prying" , "going, gradually" , "like bloodhound on trail" , "Sign on (anag)" , "Being inquisitive; advancing slowly" .)