Harp constellation (4)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
lyra
'harp constellation' 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 "Constellation resembling a musical instrument" , "Asriel's child" , "Group of stars" , "Collection of stars" , "Constellation representing instrument of Orpheus" .)