Loud word about axis (5)
I believe the answer is:
rowdy
'loud' is the definition.
(thesaurus)
'word about axis' is the wordplay.
'about' indicates an anagram.
'axis' becomes 'y' (**).
'word' anagrammed gives 'rowd'.
'rowd'+'y'='ROWDY'
(Other definitions for rowdy that I've seen before include "yob" , "Loud and disorderly" , "Noisy and disorderly" , "Boisterous" , "Raucous" .)