Crossword Genius

Relief organisation hot with religion? (3,5)

Ross

I believe the answer is:

red cross

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

'relief organisation' is the definition.
(I've seen this before)

'hot with religion?' is the wordplay.
I cannot really see how this works, but
'religion?' could be 're' (short for Religious Education) and 're' is present in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for red cross that I've seen before include "Emergency organisation" , "Medical outfit" , "Humanitarian outfit" , "International relief organisation" , "Intl. relief agency" .)

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