Being noisy is possibly vice of ours (10)
I believe the answer is:
vociferous
'being noisy' is the definition.
(similar in meaning)
'possibly vice of ours' is the wordplay.
'possibly' indicates anagramming the letters.
'vice'+'of'+'ours'='viceofours'
'viceofours' anagrammed gives 'VOCIFEROUS'.
'is' acts as a link.
(Other definitions for vociferous that I've seen before include "Insistently noisy" , "Strident" , "loud" .)