Clumsy American who gets a gal too upset (6)

I believe the answer is:

galoot

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'clumsy american' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?

'a gal too upset' is the wordplay.
'upset' says the letters should be written in reverse.
'too' reversed gives 'oot'.
'gal'+'oot'='GALOOT'

'who gets' is the link.

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I've seen this clue in the Evening Standard.

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