Crossword Genius

Spurious marsh seen by American (5)

Ross

I believe the answer is:

bogus

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

'marsh seen by american' is the wordplay.
'marsh' becomes 'bog' (a bog is a marshy area).
'seen by' says to put letters next to each other.
'american' becomes 'US' (United States).
'bog'+'us'='BOGUS'

(Other definitions for bogus that I've seen before include "Dummy" , "that's not real" , "Scribbled drawing" , "Not genuine, sham" , "Not true" .)

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