Yet I'd be converted to God (5)
I believe the answer is:
deity
'to god' is the definition.
(synonyms)
'yet i'd be converted' is the wordplay.
'be converted' indicates an anagram.
'yet'+'id'='yetid'
'yetid' is an anagram of 'DEITY'.
(Other definitions for deity that I've seen before include "Refuge" , "Divinity" , "Supernatural being" , "Supreme being" , "God or goddess" .)