Crossword Genius

Some islands are of Eastern origin (6)

Ross

I believe the answer is:

faeroe

I'm a little stuck... Click here to teach me more about this clue!

'some islands' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'are of eastern origin' is the wordplay.
I cannot really see how this works, but
an anagram of 'are' is 'aer' which is within the answer.
'of' could be 'o' and 'o' is found within the answer.
'eastern' could be 'e' and 'e' is present in the answer.
A single letter 'f' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Globe and Mail.
Want a hint initially instead of a full solution? Install my app