Crossword Genius

Land in water dissolved evenly (4)

Ross

I believe the answer is:

isle

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

'dissolved evenly' is the wordplay.
'evenly' indicates alternate letters (the letters in even-numbered positions).
The alternate letters of 'dissolved' are 'ISLE'.

(Other definitions for isle that I've seen before include "eg Thanet" , "Spot (in ocean)" , "Lilliput, say" , "See 11 Across" , "Perspire" .)

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