Premium cut of lamb son stewed with cousin (2-6,5)
I believe the answer is:
no-claims bonus
'premium cut' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'lamb son stewed with cousin' is the wordplay.
'stewed with' is an anagram indicator.
'lamb'+'son'='lambson'
'lambson' with its letters mixed up with 'cousin' makes 'NO-CLAIMS BONUS'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for no-claims bonus that I've seen before include "Insurance premium reduction after a period without a prang, for example in a car" , "Insurance benefit" , "Insurance discount" .)