Wooden horse (8)
I believe the answer is:
chestnut
I believe this clue is a double definition.
'wooden' is the first definition.
(I know that chestnut is a type of wooden)
'horse' is the second definition.
(I know that chestnut is a type of horse)
(Other definitions for chestnut that I've seen before include "not a cracker!" , "Laughably predictable" , "Conker tree - 11 of 10" , "''Underneath the spreading . . . . . . . . tree''" , "comedian's overused line?" .)