Crossword Genius

Sell up, leaving island subsequently (5)

Ross

I believe the answer is:

later

'subsequently' is the definition.
(subsequently means later on)

I can't explain the remainder of the clue.

(Other definitions for later that I've seen before include "In due course" , "more modern" , "Alter (anag.)" , "behind schedule" , "succeeding" .)

I've seen this clue in The Times.
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