Most of team's embarrassed for yielding (7)
I believe the answer is:
squashy
'yielding' is the definition.
(I've seen this before)
'most of team's embarrassed' is the wordplay.
'most of' means to remove the last letter.
'team' becomes 'squad' (sports team).
'embarrassed' becomes 'shy' (shy can mean reserved or embarrassed).
'squad' with its final letter taken off is 'squa'.
'squa'+'shy'='SQUASHY'
'for' is the link.
(Other definitions for squashy that I've seen before include "Like overripe fruit" , "Yielding" .)