Crossword Genius

They're likely to get stuck abroad (7,6)

Ross

I believe the answer is:

foreign stamps

I'm a little stuck... Click here to teach me more about this clue!

'they're likely to get stuck' is the definition.
I know nothing about this answer so I can't tell whether this works.

'abroad' is the wordplay.
I cannot quite understand how this works, but
'abroad' could be 'foreign' (similar in meaning) and 'foreign' is found within the answer.
The remaining letters 'stamps' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Globe and Mail.
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