Crossword Genius

Strike-leader makes fun of shifts (6)

Ross

I believe the answer is:

smocks

I'm a little stuck... Click here to teach me more about this clue!

'shifts' is the definition.
(I know this)

'strike-leader makes fun of' is the wordplay.
'strike-leader' becomes 's' (this could be a standard abbreviation which I don't know about).
'makes fun of' becomes 'mocks' (I've seen this in another clue).
's'+'mocks'='SMOCKS'

Can you help me to learn more?

(Other definitions for smocks that I've seen before include "dresses" , "countryfolks' garb?" , "Loose long coveralls" , "Artists' overalls" , "artist's clothes" .)

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