Champs said to choose (5)

I believe the answer is:

chews

'champs' is the definition.

'said to choose' is the wordplay.
'said' indicates a 'sounds like' (homophone) clue.
'choose' is a homophone of 'CHEWS'.

(Other definitions for chews that I've seen before include "Does something with tooth" , "toffees" , "bites" , "Masticates" .)

I've seen this clue in the Evening Standard.

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