Broadcasts invitation to cheer flyer (7)
I believe the answer is:
airship
'cheer flyer' is the definition.
'airship' can be an answer for 'flyer' (airship is a kind of aircraft). I'm not sure about the 'cheer' bit.
'broadcasts invitation' is the wordplay.
'broadcasts' becomes 'airs' ('air' can be a synonym of 'broadcast').
'invitation' becomes 'hip' (I can't explain this - if you can you should give a lot more credence to this answer).
'airs'+'hip'='AIRSHIP'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for airship that I've seen before include "Eg, Zeppelin" , "mode of transport" , "Means of transport" , "Zeppelin, for example" , "need approval from CAA" .)