Young pigeon ran, fell out? (9)
I believe the answer is:
squabbled
'fell out?' is the definition.
The definition and answer can be both to do with communicating as well as being past participle verbs.
Perhaps they are linked in a way I don't understand?
'young pigeon ran' is the wordplay.
'young pigeon' becomes 'squab' (I've seen this before).
'ran' becomes 'bled' ('bleed' can be a synonym of 'run').
'squab'+'bled'='SQUABBLED'
Can you help me to learn more?
(Another definition for squabbled that I've seen is " fallen out".)