Small set covering Roman farewell and unit retreating from city in Israel

I believe the answer is:

tel aviv

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'city in israel' is the definition.
(I've seen this before)

I can't explain the rest of the clue.

(Other definitions for tel aviv that I've seen before include "Evil Vat imposed on Israeli city" , "Second largest city of Israel" , "Middle Eastern city" , "Major city of Israel" , "city on the Mediterranean coast" .)

I've seen this clue in the Irish Times.

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