Crossword Genius

Test shaft on chopper sent back (7)

Ross

I believe the answer is:

examine

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

'test' is the definition.
(I know that test is a kind of examine)

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for examine that I've seen before include "Subject to scrutiny" , "research" , "Check" , "Thoroughly inspect" , "Question closely" .)

I've seen this clue in The Sun.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.