Poorly-rated walk (5)
I believe the answer is:
tread
'walk' is the definition.
(treading is a kind of walking)
'poorly-rated' is the wordplay.
'poorly' is an anagram indicator (I've seen this in other clues).
'rated' is an anagram of 'TREAD'.
(Other definitions for tread that I've seen before include "between the car and the road" , "way of dancing" , "March" , "A measurement of tyre" , "Part of sole" .)