Crossword Genius

Refugees are not at home with actors (8)

Ross

I believe the answer is:

outcasts

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'refugees' is the definition.
The definition and answer can be both people as well as being plural nouns.
Maybe they are linked in a way I don't understand?

'not at home with actors' is the wordplay.
'not at home' becomes 'out' (out can mean away from home).
'with' means one lot of letters go next to another.
'actors' becomes 'casts' (I can't explain this - if you can you should believe this answer much more).
'out'+'casts'='OUTCASTS'

'are' acts as a link.

Can you help me to learn more?

(Other definitions for outcasts that I've seen before include "People rejected by society" , "Pariahs" .)

I've seen this clue in The Globe and Mail.
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