Exercise in order for man? (5)
I believe the answer is:
biped
'man?' is the definition.
(humans are an example)
'exercise in order' is the wordplay.
'exercise' becomes 'pe' (Physical Education).
'in' is an insertion indicator.
'order' becomes 'bid' (I've seen this in another clue).
'pe' placed within 'bid' is 'BIPED'.
'for' acts as a link.
(Other definitions for biped that I've seen before include "Primate, for example" , "Two-legged creature" , "Man, say" , "Walker on two feet" , "Two-footed animal" .)