Not all appreciate the rector’s tie (6)
I believe the answer is:
tether
'tie' is the definition.
(I've seen this before)
'not all appreciate the rector's' is the wordplay.
'not all' indicates the answer is hidden within the clue.
'TETHER' is hidden within 'appreciate the rector'.
(Other definitions for tether that I've seen before include "Restricting rope, chain" , "Leash" , "lead" , "Rope for restraining animal (6)" , "Restrictive rope fixed to one spot" .)