Steps too much, turning heel (8)
I believe the answer is:
stiletto
'heel' is the definition.
(stiletto heel is a kind of heel)
'steps too much turning' is the wordplay.
'steps' becomes 'stile' (I've seen this in other clues).
'too much' becomes 'ott' (short for 'over the top' - informal British).
'turning' says the letters should be written backwards.
'ott' written backwards gives 'tto'.
'stile'+'tto'='STILETTO'
(Other definitions for stiletto that I've seen before include "dangerous weapon" , "Kind of heel" , "Dagger with narrow blade, or a high heel" , "Dagger; tapered heel" , "Stabbing dagger or high heel" .)