Minded headless chicken (5)
I believe the answer is:
cared
'minded' is the definition.
(I've seen this in another clue)
'headless chicken' is the wordplay.
'headless' means to remove the first letter.
'chicken' becomes 'scared' (chicken can mean cowardly or scared).
'scared' with its first letter taken away is 'CARED'.
(Other definitions for cared that I've seen before include "Tended" , "Felt affection (for)" , "Felt concern or interest" , "Was concerned" , "had feelings" .)