A blue “Do keep my memory alive” (6-2-3)
I believe the answer is:
forget-me-not
'a blue' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for forget-me-not that I've seen before include "Blue-flowered plant" , "Plant with small blue flowers" , "Flower of remembrance" , "Small blue flower" , "Wild flower" .)