Crossword Genius

It unfolds and gives way (7)

Ross

I believe the answer is:

roadmap

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

'it unfolds and' is the definition.
I know nothing about this answer so I can't tell whether this works.

'way' is the wordplay.
I cannot really understand how this works, but
'way' could be 'road' (road is a kind of way) and 'road' is found within the answer.
The remaining letters 'map' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...

'gives' is the link.

Can you help me to learn more?

(Other definitions for roadmap that I've seen before include "Plan for achieving a goal" , "It shows the way" , "Atlas for travellers" , "Plan for solving international problem?" , "Street plan" .)

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