Crossword Genius

Befuddled hypnotist forgetting first language (6)

Ross

I believe the answer is:

python

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

'language' is the definition.
(python is a programming language)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for python that I've seen before include "Constrictor snake" , "Heavy non-venomous snake" , "Large tropical snake that suffocates its prey" , "Heavy-bodied snake" , "Type of snake" .)

I've seen this clue in The Independent.
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