Europe is able to control a leak (9)

I believe the answer is:

continent

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

'europe' is the definition.
(Europe is a continent)

I can't explain the remainder of the clue.

(Other definitions for continent that I've seen before include "dry?" , "huge area of land" , "Monk vows" , "Self-restrained" , "Several countries maybe" .)

I've seen this clue in The Guardian.

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