Crossword Genius

What the TV repairer gets, when he tackles jobs? (4,2,4)

Ross

I believe the answer is:

sets to work

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

'what' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'tv repairer gets when he tackles jobs?' is the wordplay.
I cannot quite see how this works, but
'tv' could be 'set' (television set) and 'set' is present in the answer.
This explanation may well be incorrect...

'the' is the link.

Can you help me to learn more?

I've seen this clue in the Evening Standard.
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