Crossword Genius

Frighten a seal with a joyful outburst (9)

Ross

I believe the answer is:

cowabunga

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

'joyful outburst' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'frighten a seal with a' is the wordplay.
'frighten' becomes 'cow' (I've seen this in other clues).
'seal' becomes 'bung' (bung can mean a seal or stopper).
'with' is a charade indicator (letters next to each other).
'cow'+'a'+'bung'+'a'='COWABUNGA'

Can you help me to learn more?

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.