Politician has whip round for cheese (9)
I believe the answer is:
camembert
'cheese' is the definition.
(Camembert is an example)
'politician has whip round' is the wordplay.
'politician has' becomes 'member' (I can't explain this - if you can you should believe this answer much more).
'whip' becomes 'cat' (cat o' nine tails, cat for short is a type of whip).
'round' means one lot of letters goes inside another.
'member' inserted inside 'cat' is 'CAMEMBERT'.
'for' is the link.
Can you help me to learn more?
(Other definitions for camembert that I've seen before include "French produce" , "Rich soft French cheese" , "Soft creamy French cheese" , "For something to eat" , "soft fare" .)