Rubber or plastic ring lining a hole (7)

I believe the answer is:

grommet

(Other definitions for grommet that I've seen before include "Ring of rubber to line a hole and prevent chafing" , "Ring for hole - tube for eardrum" , "Tube in eardrum to drain and ventilate ear" , "Ring shaped to line a small hole" , "Washer; eyelet" .)

I've seen this clue in the Sydney Morning Herald.

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