That lady's driver follows small forest (8)
I believe the answer is:
sherwood
'forest' is the definition.
(as in Sherwood Forest)
'that lady's driver follows small' is the wordplay.
'that lady' becomes 'her' ('her' refers to a woman).
'driver' becomes 'wood' (wood is a type of driver - type of golf club).
'follows' says to put letters next to each other.
'small' becomes 's' (abbreviation - e.g. clothes size).
'her'+'wood'='herwood'
'herwood' after 's' is 'SHERWOOD'.
(Other definitions for sherwood that I've seen before include "8 10's forest" , "Ancient forest" , "Robin Hood's forest" , "Forest of Robin Hood" , "Forest, home of the Merry Men" .)