Stake bound for fast runner (8)
I believe the answer is:
antelope
'fast runner' is the definition.
(I've seen this before)
'stake bound' is the wordplay.
'stake' becomes 'ante' (stake in poker).
'bound' becomes 'lope' (to lope is to travel with bounding stride or bound).
'ante'+'lope'='ANTELOPE'
'for' is the link.
(Other definitions for antelope that I've seen before include "Eg, gazelle or gnu" , "Long-legged ruminant" , "Swift deer-like animal" , "Horned ruminant" , "Animal related to goat" .)