Surplus actor (5)

I believe the answer is:

extra

This clue is a double definition.

'surplus' is the first definition.
(I know that surplus can be written as extra)

'actor' is the second definition.
(extra is a type of actor)

(Other definitions for extra that I've seen before include "Supplemental" , "small-time actor" , "Small part actor" , "There's more" , "Left over" .)

I've seen this clue in The Daily Express.

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