Half of Tube take a quick glance at Italian (6)

I believe the answer is:

tuscan

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'italian' is the definition.
(Tuscan is an example)

'half of tube take a quick glance' is the wordplay.
'half of' indicates taking half.
'take' means one lot of letters go next to another.
'a quick glance' becomes 'scan' (I can't justify this - if you can you should believe this answer much more).
'tube' cut in half is 'tu'.
'tu'+'scan'='TUSCAN'

'at' acts as a link.

Can you help me to learn more?

(Other definitions for tuscan that I've seen before include "Relating to a region of Italy" , "Standard Italian" , "Person from Siena" , "European" , "From a central Italian region" .)

I've seen this clue in the Irish Times.

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