Constellation named for an instrument (4)
I believe the answer is:
lyra
'constellation named for an instrument' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lyra that I've seen before include "Group of stars" , "Asriel's child" , "Constellation near Draco" , "Collection of stars" , "Constellation resembling a musical instrument" .)