Neglected to move afield (6)
I believe the answer is:
failed
'neglected' is the definition.
('fail' can be a synonym of 'neglect')
'to move afield' is the wordplay.
'to move' indicates anagramming the letters.
'afield' with letters rearranged gives 'FAILED'.
(Other definitions for failed that I've seen before include "Did not succeed, perhaps at exam" , "Didn't make it - not well" , "Bankrupt" , "Was unsuccessful, did not pass exam" , "Didn't succeed" .)