Turn with part of the foot (5)
I believe the answer is:
Here is my best explanation:
'turn' is the definition.
(I've seen this before)
'with part of the foot' is the subsidiary indication.
'with' becomes 'w' (abbreviation).
'part of the foot' becomes 'heel' (I've seen this before**).
(Other definitions for wheel that I've seen before include "Move in a circle", "Circular frame with spokes", "Catherine -; gear -", "Change direction as if on an axis", "Rotate", "Roll", "Ship's steering device", "Turn in a wide 14 across", "Turn in a wide circle" and "Revolutionary invention!".)