Crossword Genius

Good sense to accept run in Tesla, say, having some qualms? (7)

Ross

I believe the answer is:

nervous

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

'tesla say having some qualms?' is the definition.
I can't tell whether this defines the answer.

'good sense to accept run' is the wordplay.
'good sense' becomes 'nous ' (nous is a kind of good sense).
'to accept' indicates putting letters inside.
'run' becomes 'erv' (I can't justify this - if you can you should believe this answer much more).
'nous' going around 'erv' is 'NERVOUS'.

'in' is the link.

Can you help me to learn more?

(Other definitions for nervous that I've seen before include "Jittery" , "Feeling or showing anxiety" , "in a stew" , "Frightened" , "Agitated and apprehensive" .)

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