TV -- top aria may be rendered by this tenor (9)
I believe the answer is:
pavarotti
'tenor' is the definition.
(I've seen this before)
'tv top aria may be rendered by this' is the wordplay.
'may be rendered by this' is an anagram indicator.
'tv'+'top'+'aria'='tvtoparia'
'tvtoparia' with letters rearranged gives 'PAVAROTTI'.
(Other definitions for pavarotti that I've seen before include "Is art a pivot for this tenor?" , "Operatic tenor, d.2007" , "Singer" , "Luciano . . . . . . . . ., great Italian tenor" , "Air ace" .)