Sunglasses in lavender, lilac, magnolia, etc (6)
I believe the answer is:
shades
'sunglasses' is the definition.
(synonyms)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for shades that I've seen before include "'Tints, tones (6)'" , "Sunglasses, colloquially" , "Old ghosts or modern sunglasses" , "Hip sunglasses or gloomy ghosts" , "Poetic ghosts or American sunglasses" .)