Crossword Genius

Make warmer path with EU stimulated (4,2)

Ross

I believe the answer is:

heat up

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'make warmer path with eu stimulated' is the definition.
I can't judge whether this defines the answer.

'path with eu stimulated' is the wordplay.
'with' is a charade indicator (letters next to each other).
'stimulated' indicates anagramming the letters (letters made active or stimulated).
'path'+'eu'='patheu'
'patheu' with letters rearranged gives 'HEAT UP'.

Can you help me to learn more?

(Other definitions for heat up that I've seen before include "Make more intense" , "Warm through" .)

I've seen this clue in The Sun.
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