Appropriate prophet taking pilgrimage (9)
I believe the answer is:
sequester
'appropriate' is the definition.
(I've seen this before)
'prophet taking pilgrimage' is the wordplay.
'prophet' becomes 'seer' (both can mean someone who tells the future).
'taking' is an insertion indicator.
'pilgrimage' becomes 'quest' (I've seen this in another clue).
'seer' going around 'quest' is 'SEQUESTER'.
(Other definitions for sequester that I've seen before include "Set aside" , "Separate" , "Take aside" , "Isolate or hide away (something or someone)" , "Remove; confiscate (property)" .)