Shades of pretty Polly Perkins and sweet Molly Malone? (10)
I believe the answer is:
sunglasses
'shades' is the definition.
(synonyms)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for sunglasses that I've seen before include "protection for pupils" , "These offer a sight more protection" , "They relieve effect of glaring" , "summer wear" , "viewing aids" .)