Crossword Genius

Dirty line of soldiers (6)

Ross

I believe the answer is:

defile

I believe this clue is a double definition.

'dirty' is the first definition.
(I've seen this in another clue)

'line of soldiers' is the second definition.
(defile could historically mean a line of soldiers)

(Other definitions for defile that I've seen before include "passage" , "Pollute, make dirty" , "Pollute in ravine?" , "Corrupt - mountain pass" , "Foul - pass" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app