Foot sore, rambling in the wood (6)
I believe the answer is:
forest
'wood' is the definition.
('forest' can be a synonym of 'wood')
'foot sore rambling in the' is the wordplay.
'foot' becomes 'ft' ('ft' can be a synonym of 'foot').
'rambling' indicates anagramming the letters.
'in the' is an insertion indicator.
'sore' with letters rearranged gives 'ores'.
'ft' enclosing 'ores' is 'FOREST'.
(Other definitions for forest that I've seen before include "Best Actor Oscar winner 2006, for 'The Last King of Scotland'" , "that has branches everywhere" , "eg Sherwood" , "Large densely wooded area" , "Sherwood or Pine, say" .)