With a clean sheet, he shouldn't lose his place (6)
I believe the answer is:
keeper
'place' is the definition.
(I know that keeper is a place)
'with a clean sheet he shouldn't lose his' is the wordplay.
I cannot really see how this works, but
'a' could be 'per' (eg 'one a day' means 'one per day') and 'per' is located in the answer.
The remaining letters 'kee' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for keeper that I've seen before include "Zoo or park manager" , "Holder; museum official" , "Reluctant" , "Guardian, in the zoo say" , "SECOND PART OF 16" .)