Working on stage and giving background information (7,3,5)

I believe the answer is:

setting the scene

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

'background information' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'working on stage and' is the wordplay.
I cannot quite understand how this works, but
'stage' could be 'setting' (setting is a kind of stage) and 'setting' is found in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is present in the answer.
This may be the basis of the clue (or it may be nonsense).

'giving' acts as a link.

Can you help me to learn more?

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.