Crossword Genius

Started up when starting to end run (6,2)

Ross

I believe the answer is:

turned on

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

'started up' is the definition.
I know nothing about this answer so I can't judge whether this works.

'starting to end run' is the wordplay.
'to end run' anagrams to 'TURNED-ON'.
But, I am unsure how the anagram is indicated.

'when' is the link.

Can you help me to learn more?

(Other definitions for turned on that I've seen before include "Suddenly attacked - state of ecstasy - high" , "Stimulated" , "TV working?" , "Activated - aroused" , "Excited" .)

I've seen this clue in the Sydney Morning Herald.
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