Pan writer, one breaching W vessel shortly (6)

I believe the answer is:

barrie

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

'pan writer' is the definition.
'barrie' can be an answer for 'writer' (I've seen this before). I'm not certain of the 'pan' bit.

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for barrie that I've seen before include "J M ...... created Peter Pan" , "Children's writer" , "J. M. -, Peter Pan author" , "Peter Pan's creator" , "J. M. -, Peter Pan creator" .)

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

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