Crossword Genius

Dancer-actor devoted, down to wearing hat to boost film’s content (5,8)

Ross

I believe the answer is:

david gulpilil

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

'wearing hat to boost film's content' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'dancer-actor devoted down' is the wordplay.
I cannot really see how this works, but
'devoted' could be 'avid' (I've seen this in another clue) and 'avid' is found within the answer.
'down' could be 'd' and 'd' is found within the answer.
This may be the basis of the clue (or it may be nonsense).

'to' acts as a link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
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