Attraction priests originally found in a set of bells (6)
I believe the answer is:
appeal
'attraction' is the definition.
(thesaurus)
'priests originally found in a set of bells' is the wordplay.
'originally' indicates taking the first letters.
'found in' indicates putting letters inside.
'set of bells' becomes 'peal' (I've seen this before).
The initial letter of 'priests' is 'p'.
'a'+'peal'='apeal'
'p' going inside 'apeal' is 'APPEAL'.
(Other definitions for appeal that I've seen before include "Pray, invoke" , "Supplication to take a higher court" , "Seek to overturn verdict in higher court" , "Try to have a court case reheard" , "Attraction, pleasantness" .)