Journey to a sacred place (10)
I believe the answer is:
pilgrimage
'journey to a sacred place' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for pilgrimage that I've seen before include "journey to shrine" , "Journey to a sacred place" , "Religious traveller's journey" , "Holy journey" , "What Chaucer,s travellers were engaged upon" .)