Stray badly, as a woodland god (5)
I believe the answer is:
satyr
'a woodland god' is the definition.
(I've seen this before)
'stray badly' is the wordplay.
'badly' is an anagram indicator.
'stray' with letters rearranged gives 'SATYR'.
'as' is the link.
(Other definitions for satyr that I've seen before include "lecher" , "Goatlike deity of Greek myth" , "Lustful men or woodland gods" , "Chased nymphs in the wood" , "Mythological woodland deity" .)