Style team reduced in numbers (4,3)
I believe the answer is:
crew cut
'style' is the definition.
(type of haircut)
'team reduced in numbers' is the wordplay.
I cannot really see how this works, but
'team' could be 'crew' (crew is a kind of team) and 'crew' is found in the answer.
'reduced' could be 'cut' (similar in meaning) and 'cut' is located in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for crew cut that I've seen before include "Outcome of airline economy study" , "in which redundancies effected?" , "Redundancies made in naval" , "result of ship's economy drive?" , "Closely cropped hair style for men" .)