Required and rang to get (6,3)
I believe the answer is:
called for
'required' is the definition.
(calling for is a kind of requiring)
'rang to get' is the wordplay.
'rang' becomes 'called' ('call' can be a synonym of 'ring').
'to get' becomes 'for' (as in 'to go shopping for presents').
'called'+'for'='CALLED FOR'
'and' acts as a link.
(Other definitions for called for that I've seen before include "Justified" , "summoned" .)