Good boy needs heart to give a seductive stare (4,3)
I believe the answer is:
glad eye
'stare' is the definition.
(I've seen this before)
'good boy needs heart to give a seductive' is the wordplay.
I cannot quite understand how this works, but
'good' could be 'g' (abbreviation) and 'g' is found within the answer.
'boy' could be 'ade' and 'ade' is located in the answer.
The remaining letters 'lye' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for glad eye that I've seen before include "Gee lady (anag.)" , "Seductive look" , "A look that could excite" , "stare" , "look to attract lover?" .)