Table I replaced in church: that’s just like some priests (8)
I believe the answer is:
celibate
'that's just like some priests' is the definition.
I can't tell whether this defines the answer.
'table i replaced in church' is the wordplay.
'replaced' indicates an anagram.
'in' is an insertion indicator.
'church' becomes 'ce' (abbreviation for Church of England**).
'table'+'i'='tablei'
'tablei' is an anagram of 'elibat'.
'elibat' going within 'ce' is 'CELIBATE'.
Can you help me to learn more?
(Other definitions for celibate that I've seen before include "Not the marrying kind" , "Unmarried in citeable way" , "Citeable as unmarried for religious reasons" , "Avowed bachelor" , "Remaining chaste for religious reasons." .)