Element of ancient craft close to forgotten (5)

I believe the answer is:

argon

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

'element' is the definition.
(argon is a chemical element)

'ancient craft close to forgotten' is the wordplay.
'ancient craft' becomes 'argo' (I have seen 'Old craft' mean 'argo' so perhaps 'craft' could also mean 'argo'. I am not sure about the 'ancient' bit.).
'close to' says to take the final letters (the 'close' to the word).
The final letter of 'forgotten' is 'n'.
'argo'+'n'='ARGON'

'of' acts as a link.

Can you help me to learn more?

(Other definitions for argon that I've seen before include "Noble gas, Ar" , "Inert gas, present in small amounts in the air" , "something inert and insubstantial" , "Noble gas, atomic number 18" , "Noble gas used in light bulbs" .)

I've seen this clue in The Times.

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.