Constellation near Cassiopeia (9)
I believe the answer is:
'constellation near cassiopeia' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for andromeda that I've seen before include "shrub" , "Adored man on constellation with great spiral nebula" , "Moan, dread about princess rescued by Perseus" , "Large northern constellation between Perseus and Pegasus" , "Constellation; bog rosemary" .)