Verger's first to see vicar forced into reciprocal relationship (4,5)
I believe the answer is:
vice versa
'into reciprocal relationship' is the definition.
I can't judge whether this definition defines the answer.
'verger's first to see vicar forced' is the wordplay.
'first' indicates taking the first letters.
'to' says to put letters next to each other.
'forced' indicates anagramming the letters.
The first letter of 'verger' is 'v'.
'see'+'vicar'='seevicar'
'seevicar' with letters rearranged gives 'iceversa'.
'v'+'iceversa'='VICE VERSA'
Can you help me to learn more?
(Other definitions for vice versa that I've seen before include "The other way around" , "otherwise" , "Revise a VC? (anag)" , "With the order reversed" , "The opposite (also applies)" .)