Is pyroxene manufactured as bonding component? (5,5)

I believe the answer is:

epoxy resin

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'bonding component?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.

'is pyroxene manufactured' is the wordplay.
'manufactured' indicates anagramming the letters.
'is'+'pyroxene'='ispyroxene'
'ispyroxene' with letters rearranged gives 'EPOXY RESIN'.

'as' acts as a link.

Can you help me to learn more?

(Other definitions for epoxy resin that I've seen before include "compound" , "Synthetic adhesive" , "synthetic material" , "This used to surface" .)

I've seen this clue in The Times.

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