A bit above a walk-on part? (5)

I believe the answer is:

extra

This clue is a double definition.

'a bit above' is the first definition.
(I've seen this before)

'a walk-on part?' is the second definition.
(I've seen this before)

(Other definitions for extra that I've seen before include "I may carry spear" , "Studio crowd player" , "Bit part actor" , "no ball perhaps" , "Actor's part" .)

I've seen this clue in The Globe and Mail.

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