Eccentric newlywed glum about key varsity sportsman (9,4)
I believe the answer is:
cambridge blue
'varsity sportsman' is the definition.
(person representing Cambridge in a varsity match)
'eccentric newlywed glum about key' is the wordplay.
I cannot quite understand how this works, but
'eccentric' could be 'cam' (an eccentric is a mechanical device such as a cam) and 'cam' is present in the answer.
'glum' could be 'blue' (I've seen this before) and 'blue' is found within the answer.
'key' could be 'g' (musical key) and 'g' is located in the answer.
'newlywed' could be 'bride' (newlywed woman) and 'bride' is present in the remaining letters.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for cambridge blue that I've seen before include "shade" , "Uni sportsman; colour" , "Light colour; university sportsman" .)