Line of verse confused three receiving test (9)

I believe the answer is:

hexameter

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'line of verse' is the definition.
'hexameter' can be an answer for 'verse' (hexameter is a kind of verse). I am unsure of the 'line of' bit.

'confused three receiving test' is the wordplay.
'confused' is an anagram indicator.
'receiving' is an insertion indicator.
'test' becomes 'exam' (synonyms).
'three' with letters rearranged gives 'heter'.
'heter' going around 'exam' is 'HEXAMETER'.

Can you help me to learn more?

(Other definitions for hexameter that I've seen before include "Verse line of six metrical feet" , "line of poetry" , "Exeter ham? (anag)" .)

I've seen this clue in The Times.

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