Lapsed into wheel-turners (6)
I believe the answer is:
pedals
'wheel-turners' is the definition.
I can't tell whether this definition defines the answer.
'lapsed' is the wordplay.
'lapsed' anagrams to 'PEDALS'.
However, I'm not sure how the anagram is indicated.
'into' acts as a link.
Can you help me to learn more?
(Other definitions for pedals that I've seen before include "Levers on a piano" , "Foot-rests or drivers on a bicycle" , "Foot levers" , "Cycles" .)