Apply oil or grease (9)

I believe the answer is:

lubricate

I believe this is a double definition.

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

'grease' is the second definition.
(synonyms)

(Other definitions for lubricate that I've seen before include "Apply oil/grease" , "Oil (a mechanism)" , "Apply oil or grease to" , "Make slippery" , "Coat with oil to reduce friction" .)

I've seen this clue in The Times.

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