Crossword Genius

Climber to copy, getting head down (3)

Ross

I believe the answer is:

pea

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

'climber' is the definition.
(the pea plant is a climbing plant)

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for pea that I've seen before include "Seed eaten as vegetable" , "Climber" , "Tiny stone" , "Cause of a princess's insomnia?" , "12 in a pod" .)

I've seen this clue in The Times.
Want a hint initially instead of a full solution? Install my app