Come together, finding a form of solace in church (8)
I believe the answer is:
coalesce
'come together' is the definition.
(thesaurus)
'a form of solace in church' is the wordplay.
'a form of' is an anagram indicator (the letters need to be in another 'form').
'in' is an insertion indicator.
'church' becomes 'ce' (abbreviation for Church of England).
'solace' anagrammed gives 'oalesc'.
'oalesc' put within 'ce' is 'COALESCE'.
'finding' acts as a link.
(Other definitions for coalesce that I've seen before include "To bring together" , "Combine with others as political parties may do" , "Grow together, amalgamate" , "'Fuse, combine (8)'" , "Fuse or cause to grow together" .)