Hybrid cattle run backward (9)
I believe the answer is:
reluctant
'backward' is the definition.
('reluctant' can be similar in meaning to 'backward')
'hybrid cattle run' is the wordplay.
'hybrid' is an anagram indicator (I've seen this in other clues).
'cattle'+'run'='cattlerun'
'cattlerun' with letters rearranged gives 'RELUCTANT'.
(Other definitions for reluctant that I've seen before include "Disinclined to become involved" , "Unwilling to do something" , "Not wishing to" , "Hesitant, disinclined" , "Unwilling, hesitant" .)