Roman god of war (4)

I believe the answer is:

mars

'roman god of war' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for mars that I've seen before include "March to the French" , "Famous Texas mission" , "bar....that's sweet!" , "Roman war god; planet" , "War god - chocolate bar - spoils" .)

I've seen this clue in The Telegraph, The Times, The Irish Times and The Mirror.

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