Really put one's foot down? (5)
I believe the answer is:
stomp
'really put one's foot down?' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for stomp that I've seen before include "tramp" , "Tread angrily" , "Dance (with heavy stamping?)" , "Tread very heavily" , "lively jazz dance?" .)