Puts one's foot down (6)

I believe the answer is:

treads

'puts one's foot down' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for treads that I've seen before include "mates" , "Puts the foot down" , "Steps, walks" , "Sets the foot down." , "Stared at tyre surfaces" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app