Perhaps chrome is made primarily into very fine material (9)
I believe the answer is:
micromesh
'fine material' is the definition.
(I've seen this before)
'perhaps chrome is made primarily into' is the wordplay.
'perhaps' is an anagram indicator.
'primarily' says to take the initial letters.
'into' means one lot of letters goes inside another.
The first letter of 'made' is 'm'.
'chrome'+'is'='chromeis'
'chromeis' is an anagram of 'microesh'.
'microesh' going around 'm' is 'MICROMESH'.
'very' is the link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Another definition for micromesh that I've seen is " fine material".)