Backhanded slash (7)

I believe the answer is:

oblique

I believe this is a double definition.

'backhanded' is the first definition.
(thesaurus)

'slash' is the second definition.
(I've seen this before)

(Other definitions for oblique that I've seen before include "Slanting, indirect" , "Slanted" , "Angled" , "Indirect - evasive" , "Sloping; roundabout" .)

I've seen this clue in The Telegraph and The Guardian.

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