Useful note that is received by religious community (10)
I believe the answer is:
convenient
'useful' is the definition.
(thesaurus)
'note that is received by religious community' is the wordplay.
'note' becomes 'n' (abbreviation).
'that is' becomes 'ie' ('i.e.' can be a synonym of 'that is').
'received by' indicates putting letters inside.
'religious community' becomes 'convent' (I've seen this before).
'n'+'ie'='nie'
'nie' put within 'convent' is 'CONVENIENT'.
(Other definitions for convenient that I've seen before include "Suited" , "Involving little trouble" , "Handy" , "Suitable" , "Appropriate" .)