Crossword Genius

Lengthy attack (5)

Ross

I believe the answer is:

siege

'lengthy attack' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for siege that I've seen before include "Prolonged attack on a fortified place" , "Military operation to seal off (town)" , "Operation to capture a fort, for example" , "Starving-out operation" , "Persistent attempt to gain" .)

I've seen this clue in the Universal, the USA Today and the New York Times.
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