Satisfied about Old Testament setting for church (5)
I believe the answer is:
motet
'for church' is the definition.
The definition suggests a singular noun which matches the answer.
'satisfied about old testament' is the wordplay.
'satisfied' becomes 'met' (as in 'met the conditions of his contract').
'about' is an insertion indicator.
'old testament' becomes 'ot'.
'met' going around 'ot' is 'MOTET'.
'setting' acts as a link.
Can you help me to learn more?
(Other definitions for motet that I've seen before include "Unaccompanied choral composition with sacred lyrics" , "Anthem or church cantata" , "Short piece of church choral music" , "10 [COMPOSITION]" , "Creating sacred piece" .)