All six pegs form transparent material (10)

I believe the answer is:

plexiglass

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'transparent material' is the definition.
'plexiglass' can be an answer for 'material' (I have seen 'Tough material' mean 'plexiglass' so perhaps 'material' could also mean 'plexiglass'). I am unsure of the 'transparent' bit.

'all six pegs form' is the wordplay.
'form' is an anagram indicator (another form of the letters).
'all'+'six'+'pegs'='allsixpegs'
'allsixpegs' anagrammed gives 'PLEXIGLASS'.

Can you help me to learn more?

(Other definitions for plexiglass that I've seen before include "Transparent thermoplastic material (US)" , "Tough material" .)

I've seen this clue in The Daily Express.

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