Fine malt fibre (8)

I believe the answer is:

filament

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

'fibre' is the definition.
(I know that filament is a type of fibre)

'fine malt' is the wordplay.
'fine malt' can be anagrammed to 'FILAMENT'.
Though, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for filament that I've seen before include "Slender fibre or wire" , "'Thin wire, in a bulb say (8)'" , "Strand" , "Slender thread - conducting wire" , "Thread-like object" .)

I've seen this clue in The Irish News.

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