See exercises for extended stride (4)
I believe the answer is:
lope
'extended stride' is the definition.
'see exercises' is the wordplay.
'see' becomes 'lo' ('lo' is an archaic exclamation meaning 'look!').
'exercises' becomes 'pe' (Physical Education class).
'lo'+'pe'='LOPE'
'for' acts as a link.
(Other definitions for lope that I've seen before include "Run with long steps carrying pole" , "Walk with long strides" , "Run along easily" , "Bound along carrying pole" , "Run with a long stride" .)