Remove accompanying tie (8)
I believe the answer is:
withdraw
'remove' is the definition.
(I know that withdraw is a more specific form of remove)
'accompanying tie' is the wordplay.
'accompanying' becomes 'with' (I've seen this before).
'tie' becomes 'draw' (synonyms).
'with'+'draw'='WITHDRAW'
(Other definitions for withdraw that I've seen before include "Scratch" , "Pull back or move away" , "Bow out, retreat" , "Retire" , "Recoil" .)