Very young rugby side? (5)
I believe the answer is:
seven
'young rugby side?' is the definition.
Both the answer and definition are adjectives. Maybe you can see an association between them that I don't see?
'very' is the wordplay.
I cannot quite understand how this works, but
'very' could be 'v' (abbreviation) and 'v' is found within the answer.
The remaining letters 'seen' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for seven that I've seen before include "Little friends of ..." , "Theme of exotic dance" , "VII" , "Number of sins, seas or dwarves" , "Number of colours of the rainbow" .)