Rugby boss possibly shared team's bananas (10)

I believe the answer is:

headmaster

I'm a little stuck... Click here to teach me more about this clue!

'rugby boss' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe there's an association between them I don't understand?

'shared team's bananas' is the wordplay.
'bananas' is an anagram indicator (informal term for mad).
'shared'+'team'='sharedteam'
'sharedteam' is an anagram of 'HEADMASTER'.

'possibly' is the link.

Can you help me to learn more?

(Other definitions for headmaster that I've seen before include "Principal" , "School manager" , "Top (male) teacher" .)

I've seen this clue in The Telegraph.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.