Clubs invested in St Cecilia ales brewed in the church (14)
I believe the answer is:
ecclesiastical
'church' is the definition.
(thesaurus)
'clubs invested in st cecilia ales brewed' is the wordplay.
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'invested in' is an insertion indicator.
'brewed' indicates an anagram.
'st'+'cecilia'+'ales'='stceciliaales'
'stceciliaales' with letters rearranged gives 'ecclesiastial'.
'c' going inside 'ecclesiastial' is 'ECCLESIASTICAL'.
'in the' is the link.
(Other definitions for ecclesiastical that I've seen before include "Clergy's" , "Relating to the Christian church" , "Of the church or clergy" , "Belonging to the church" .)