Crossword Genius

Periodically admits actor into dance (5)

Ross

I believe the answer is:

disco

'dance' is the definition.
(disco can mean a dance event)

'periodically admits actor' is the wordplay.
'periodically' means one should take alternating letters (letters must be selected 'every so often').
'admits'+'actor'='admitsactor'
The alternating letters of 'admitsactor' are 'DISCO'.

'into' is the link.

(Other definitions for disco that I've seen before include "Dancing venue" , "party for dancers" , "Nightclub with recorded music, in short" , "Youngsters' dance venue" , "One might get down to this" .)

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