Men ride out dressed in fur (7)
I believe the answer is:
ermined
'dressed in fur' is the definition.
(I've seen this before)
'men ride out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'men'+'ride'='menride'
'menride' with letters rearranged gives 'ERMINED'.
(Other definitions for ermined that I've seen before include "Dressed in fur" , "with fur trimming" , "In fur robes" , "Like peers' robes" , "wearing fur" .)