Performing daily, in theory (2,5)

I believe the answer is:

on paper

'in theory' is the definition.
(synonyms)

'performing daily' is the wordplay.
'performing' becomes 'on' (as in being on stage).
'daily' becomes 'paper' (newspaper).
'on'+'paper'='ON PAPER'

(Other definitions for on paper that I've seen before include "Exam may be" , "Planned (in theory)" , "Where one might write" , "Theoretical" , "As written - in theory" .)

I've seen this clue in The Daily Express.

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