Local tenor struggling - something about the throat? (4,6)

I believe the answer is:
eton collar
'something about the throat?' is the definition.
I can't tell whether this definition defines the answer.
'local tenor struggling' is the wordplay.
'struggling' is an anagram indicator (the letters struggle or wriggle into a new form).
'local'+'tenor'='localtenor'
'localtenor' anagrammed gives 'ETON COLLAR'.
Can you help me to learn more?
(Other definitions for eton collar that I've seen before include "one assumed at school?" , "One would ring schoolboy" .)