Winger's row with The Bhoys' left half (7)
I believe the answer is:
tiercel
'winger's' is the definition.
(tiercel is a kind of bird)
'row with the bhoys' left half' is the wordplay.
I cannot quite see how this works, but
'row' could be 'tier' (tier is a kind of row) and 'tier' is present in the answer.
'left' could be 'l' (common abbreviation) and 'l' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for tiercel that I've seen before include "It flies" , "See hawk" .)