Crossword Genius

Unfortunate consequences following American calculations? (9)

Ross

I believe the answer is:

aftermath

'unfortunate consequences' is the definition.

'following american calculations?' is the wordplay.
'following' becomes 'after' (I've seen this before).
'american calculations?' becomes 'math' (US term for maths).
'after'+'math'='AFTERMATH'

(Other definitions for aftermath that I've seen before include "Subsequent consequence" , "Subsequent circumstances" , "Frame that in following events" , "Consequences of a bad event" , "Wake" .)

I've seen this clue in The Telegraph.
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