A slice each (6)

I believe the answer is:

apiece

'each' is the definition.
(synonyms)

'a slice' is the wordplay.
'slice' becomes 'piece' (synonyms).
'a'+'piece'='APIECE'

(Other definitions for apiece that I've seen before include "For or by each one of group" , "for everyone" , "A head" , "Per person" .)

I've seen this clue in The Telegraph.

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