Having given vocal items, girls use them to keep out the glare (10)
I believe the answer is:
sunglasses
'out the glare' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'having given vocal items girls use them to keep' is the wordplay.
I cannot quite see how this works, but
'vocal' could be 'sung' (synonyms) and 'sung' is present in the answer.
'girls' could be 'lasses' (lass can informally mean a girl) and 'lasses' is located in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for sunglasses that I've seen before include "assumed to protect pupils?" , "These offer a sight more protection" , "Fashion accessories" , "viewing aids" , "protection for pupils" .)