School has feeble scent (5)
I believe the answer is:
spoor
'scent' is the definition.
(I've seen this before)
'school has feeble' is the wordplay.
'school' becomes 'S'.
'has' is a charade indicator (letters next to each other).
'feeble' becomes 'poor' (feeble can mean poor or unimpressive).
's'+'poor'='SPOOR'
(Other definitions for spoor that I've seen before include "Animal's track/scent" , "Animal track, trail" , "Beast's trail" , "Track of wild animal" , "Trace" .)