Solar system displays flier first theatratical song (10)
I believe the answer is:
planetaria
'solar system' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'flier first theatratical song' is the wordplay.
'flier' becomes 'plane' (I've seen this in another clue).
'first theatratical' becomes 't' (1st letter of 'theatratical').
'song' becomes 'aria' (aria is a kind of song).
'plane'+'t'+'aria'='PLANETARIA'
'displays' is the link.
Can you help me to learn more?
(Other definitions for planetaria that I've seen before include "Astronomical exhibitions" , "views of the sky" , "Where people see Pluto" .)