Inflicting foreign article first is not impressive (10)

I believe the answer is:

unimposing

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'not impressive' is the definition.
I can't tell whether this definition defines the answer.

'inflicting foreign article first' is the wordplay.
'inflicting' becomes 'imposing' ('impose' can be a synonym of 'inflict').
'foreign article' becomes 'un' (indefinite article in French).
'first' says to put letters next to each other.
'imposing' after 'un' is 'UNIMPOSING'.

'is' is the link.

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I've seen this clue in The Daily Express.

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