Top, black, suitable for surfers? (9)

I believe the answer is:

browsable

'suitable for surfers?' is the definition.
(viewable when browsing or surfing the web)

'top black' is the wordplay.
'top' becomes 'brow' (brow can mean a summit or peak).
'black' becomes 'sable' (heraldic term for black).
'brow'+'sable'='BROWSABLE'

I've seen this clue in The Times.

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