Crossword Genius

Go up stream (4)

Ross

I believe the answer is:

burn

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

This clue could be a double definition.

'go up' is the first definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?

'stream' is the second definition.
(a burn is a small stream)

Can you help me to learn more?

(Other definitions for burn that I've seen before include "northern stream" , "Catch light; stream" , "Set 1 across [ALIGHT]" , "Incinerate" , "Smart" .)

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