Central American met a month back with Alan (10)
I believe the answer is:
guatemalan
'central american' is the definition.
(Guatemalan is an example)
'met a month back with alan' is the wordplay.
'a month' becomes 'aug' (Aug is an example).
'back' shows that the letters should be reversed in order.
'with' is a charade indicator (letters next to each other).
'met'+'aug'='metaug'
'metaug' reversed gives 'guatem'.
'guatem'+'alan'='GUATEMALAN'
(Other definitions for guatemalan that I've seen before include "Spanish-speaking person" , "from tropical country" .)