Crossword Genius

Don't look after injured leg caught in trap (7)

Ross

I believe the answer is:

neglect

'don't look after' is the definition.
(to neglect is to fail to look after)

I cannot understand how the remainder of the clue works.

(Other definitions for neglect that I've seen before include "Lack of due care and attention" , "Failure to observe" , "Fail to act or take care" , "Fail to notice or care for" , "forget" .)

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app