Group of stars beginning to panic, say, like you and me (7)
I believe the answer is:
pegasus
'group of stars' is the definition.
(I've seen this before)
'beginning to panic say like you and me' is the wordplay.
'beginning to' indicates taking the first letters.
'say' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'like' becomes 'as'.
'you and me' becomes 'us'.
The first letter of 'panic' is 'p'.
'p'+'eg'+'as'+'us'='PEGASUS'
(Other definitions for pegasus that I've seen before include "high horse" , "Inspirational figure" , "Mythical winged horse" , "mount in the clouds" , "Winged horse - constellation" .)