Makes supplications audibly in worship (6)
I believe the answer is:
praise
'worship' is the definition.
(thesaurus)
'makes supplications audibly' is the wordplay.
'makes supplications' becomes 'prays' (supplication is praying or pleading).
'audibly' shows a homophone (sound like).
'prays' sounds like 'PRAISE'.
'in' is the link.
(Other definitions for praise that I've seen before include "Speak approvingly of" , "Speak well of" , "Express approval and admiration" , "Applaud, commend" , "Aspire (anag)" .)