Fitted appendage and rode off (8)
I believe the answer is:
tailored
'fitted' is the definition.
(I've seen this in another clue)
'appendage and rode off' is the wordplay.
'appendage' becomes 'tail' (tail is a type of bodily appendage).
'and' means one lot of letters go next to another.
'off' indicates an anagram.
'rode' anagrammed gives 'ored'.
'tail'+'ored'='TAILORED'
(Other definitions for tailored that I've seen before include "Adapted" , "(Of clothes) fitted, well cut" , "Made to measure for idolater" , "Suited to an individual" , "Adjusted" .)