Crossword Genius

Small actor excited by order to fight (4,2,4)

Ross

I believe the answer is:

call to arms

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'order to fight' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'small actor excited' is the wordplay.
'excited' indicates anagramming the letters.
'small'+'actor'='smallactor'
'smallactor' is an anagram of 'CALL TO ARMS'.

'by' is the link.

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I've seen this clue in The Guardian.
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