Crossword Genius

Sign under container for couples (8)

Ross

I believe the answer is:

binaries

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

'couples' is the definition.
The definition and answer can be both natural objects as well as being plural nouns.
Perhaps you can see an association between them that I don't see?

'sign under container' is the wordplay.
'sign' becomes 'Aries' (star sign).
'under' means one lot of letters go next to another.
'container' becomes 'bin' (bin is a type of container).
'aries' after 'bin' is 'BINARIES'.

'for' is the link.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
Want a hint initially instead of a full solution? Install my app