Ten Verdi works turned up (8)
I believe the answer is:
inverted
'turned up' is the definition.
(invert can mean to turn upside down)
'ten verdi works' is the wordplay.
'works' indicates an anagram (work can mean to twist or convulse).
'ten'+'verdi'='tenverdi'
'tenverdi' is an anagram of 'INVERTED'.
(Other definitions for inverted that I've seen before include "Upturned" , "Upside-down" , "Turned upside down" .)