Retreat (like hair?) (6)
I believe the answer is:
recede
(Other definitions for recede that I've seen before include "Decline" , "Move backward" , "Go backwards" , "Withdraw" , "Decree (anag) - ebb" .)
I believe the answer is:
recede
(Other definitions for recede that I've seen before include "Decline" , "Move backward" , "Go backwards" , "Withdraw" , "Decree (anag) - ebb" .)