Rhys Jones for audience on as monster (7)

I believe the answer is:

gryphon

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

'monster' is the definition.
(I know that gryphon is a type of mythical creature)

'rhys jones for audience on' is the wordplay.
I cannot really see how this works, but
'on' is found in the answer.
This explanation may well be incorrect...

'as' is the link.

Can you help me to learn more?

(Other definitions for gryphon that I've seen before include "Winged monster with lion body" , "Eagle-headed, lion-bodied winged monster" , "He took Alice to Mock Turtle" , "ordered to escort Alice" , "Alice's mythic creature" .)

I've seen this clue in The Independent.

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