A range or another range (9)

I believe the answer is:

apennines

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'a range' is the definition.
(I know that Apennines is a range)

'another range' is the wordplay.
'another' becomes 'a' (this might be a standard abbreviation of which I'm unaware).
'range' becomes 'Pennines' (mountain range).
'a'+'pennines'='APENNINES'

'or' is the link.

Can you help me to learn more?

(Other definitions for apennines that I've seen before include "European range" , "Great mountain range in Italy (9)" , "Italian mountains" , "Italian mountain chain" , "Mountain range in central Italy" .)

I've seen this clue in The Daily Express.

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