Pace rated incorrectly (5)
I believe the answer is:
tread
'pace' is the definition.
(synonyms)
'rated incorrectly' is the wordplay.
'incorrectly' indicates an anagram (I've seen this in other clues).
'rated' is an anagram of 'TREAD'.
(Other definitions for tread that I've seen before include "Step (heavily)" , "Staircase component" , "dance" , "Depth of grooving in a tyre" , "Gripping part of tyre" .)