Place of worship moving a celebrant (10)
I believe the answer is:
tabernacle
'place of worship' is the definition.
(tabernacle is a kind of place of worship)
'moving a celebrant' is the wordplay.
'moving' indicates anagramming the letters (letters are moved around).
'a'+'celebrant'='acelebrant'
'acelebrant' anagrammed gives 'TABERNACLE'.
(Other definitions for tabernacle that I've seen before include "Nonconformist church" , "Portable tent" , "niche in church" , "A celebrant (anag) - place of worship" , "Tent for the Ark of the Covenant" .)