Greek and a Scandinavian heading west to W Indies location (7)
I believe the answer is:
grenada
'w indies location' is the definition.
'greek and a scandinavian heading west' is the wordplay.
'greek' becomes 'gr' (abbreviation for Greek).
'and' means one lot of letters go next to another.
'scandinavian' becomes 'dane' (person from Denmark).
'heading west' says the letters should be written backwards.
'a'+'dane'='adane'
'adane' written backwards gives 'enada'.
'gr'+'enada'='GRENADA'
'to' acts as a link.
(Other definitions for grenada that I've seen before include "Commonwealth country" , "commonwealth state" , "Island just north of Trinidad" , "West Indian island" , "Caribbean island country" .)