More disorderly, weird or riotous (7)
I believe the answer is:
rowdier
'more disorderly' is the definition.
('rowdy' can be similar in meaning to 'disorderly')
'weird or riotous' is the wordplay.
'riotous' indicates an anagram.
'weird'+'or'='weirdor'
'weirdor' is an anagram of 'ROWDIER'.
(Other definitions for rowdier that I've seen before include "more disturbing" , ""noisier"" , "more noisy" , "More raucous" .)