Polish acting family (5)

I believe the answer is:

sheen

I believe this is a double definition.

'polish' is the first definition.
(I've seen this before)

'acting family' is the second definition.
(I've seen this before)

(Other definitions for sheen that I've seen before include "actor?" , "to the west of Putney" , "Patina" , "splendid clothing" , "Surface shine" .)

I've seen this clue in The Telegraph and The Sun.

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