Not so fast with stake (7)
I believe the answer is:
andante
'not so fast' is the definition.
(I've seen this in another clue)
'with stake' is the wordplay.
'with' becomes 'and'.
'stake' becomes 'ante' (stake in poker).
'and'+'ante'='ANDANTE'
(Other definitions for andante that I've seen before include "Moderately slow piece of music" , "Musically, in moderately slow time" , "not hurrying from bar to bar" , "(Musically) at a moderate pace" , "For players, rather slow" .)