Land in water (4)

I believe the answer is:

isle

'land in water' is the definition.
(an isle is a bit of land surrounded by water)

This is all the clue.

(Other definitions for isle that I've seen before include "eg Thanet" , "Skye, for instance" , "Small area of land in water" , "Atoll" , "Such as Man or Bute" .)

I've seen this clue in the Universal, The Telegraph and the Newsday.

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