Put foot down to stop guarantor of delivery taking strike action (5,3)

I believe the answer is:

stamp out

(Other definitions for stamp out that I've seen before include "Completely dispose of" , "Suppress with heavy foot" , "Eradicate - as with heavy foot (5,3)" , "Scotch" , "A stout MP (anag.)" .)

I've seen this clue in The Times.

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