Little look on time (5)
I believe the answer is:
scant
'little' is the definition.
(I've seen this before)
'look on time' is the wordplay.
'look' becomes 'scan' (I've seen this before).
'on' means one lot of letters go next to another.
'time' becomes 't' (abbreviation).
'scan'+'t'='SCANT'
(Other definitions for scant that I've seen before include "Less than the required amount" , "Minimal (amount)" , "Cursory" , "Hardly any" , "Limited, inadequate" .)