Female in brigade failing physical education? (5)
I believe the answer is:
unfit
'failing physical education?' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?
'female in brigade' is the wordplay.
'female' becomes 'f' (abbreviation).
'in' indicates putting letters inside.
'brigade' becomes 'unit' (I am not sure about this - if you are sure you should believe this answer much more).
'f' put within 'unit' is 'UNFIT'.
Can you help me to learn more?
(Other definitions for unfit that I've seen before include "In poor condition" , "Ill-suited" , "Ill-equipped" , "Not in good physical shape (5)" , "Inappropriate" .)