Crossword Genius

Study country's borders on arrival (7)

Ross

I believe the answer is:

perusal

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'study' is the definition.
(I've seen this before)

'country's borders on arrival' is the wordplay.
'country' becomes 'Peru' (Peru is an example).
'borders on arrival' becomes 'sal' (I can't justify this - if you can you should believe this answer much more).
'peru'+'sal'='PERUSAL'

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(Other definitions for perusal that I've seen before include "thorough scan" , "Careful examination" , "Study or scrutiny" , "Process of examination" , "A casual read or study" .)

I've seen this clue in The Telegraph.
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