A couple from Austria go peculiar (7)

I believe the answer is:

strange

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'peculiar' is the definition.
(synonyms)

'a couple from austria go' is the wordplay.
'a couple from austria' becomes 'st' (I can't justify this - if you can you should believe this answer much more).
'go' becomes 'range' (ranging is a kind of going).
'st'+'range'='STRANGE'

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(Other definitions for strange that I've seen before include "Queer" , "Odd - rum" , "Unknown or peculiar" , "Different" , "Weird, eerie" .)

I've seen this clue in The Daily Express.

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