The bowler's appeal causes a tumult? (6)
I believe the answer is:
outcry
'tumult?' is the definition.
(thesaurus)
'the bowler's appeal' is the wordplay.
'the bowler's' becomes 'out' (I can't justify this - if you can you should believe this answer much more).
'appeal' becomes 'cry' (as in a cry for help).
'out'+'cry'='OUTCRY'
'causes a' acts as a link.
Can you help me to learn more?
(Other definitions for outcry that I've seen before include "A storm of protest" , "commotion" , "A strong protest, often public" , "Sea eagle" , "Vociferous protest" .)