Pete Tong spins wrong song by Duffy (8,5)
I believe the answer is:
stepping stone
'song by duffy' is the definition.
I can't judge whether this definition defines the answer.
'pete tong spins wrong' is the wordplay.
'wrong' indicates an anagram.
'pete'+'tong'+'spins'='petetongspins'
'petetongspins' with letters rearranged gives 'STEPPING-STONE'.
Can you help me to learn more?
(Other definitions for stepping stone that I've seen before include "Means to gradual progress" , "means of advancement" , "Part of stream crossing" , "feature across stream?" , "This may help one to make progress" .)