Looks like one of Elgar's variations (6)

I believe the answer is:

glares

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'looks' is the definition.
(I know this)

'elgar's variations' is the wordplay.
'variations' indicates anagramming the letters.
'elgars' is an anagram of 'GLARES'.

'like one of' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for glares that I've seen before include "Angry stares" , "Stares angrily" , "Looks hotly and angrily" .)

I've seen this clue in The Globe and Mail.

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