The sad sculpture beneath which I must go? (9)
I believe the answer is:
headstone
'i must go?' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'the sad sculpture beneath' is the wordplay.
'sculpture' indicates an anagram.
'beneath' becomes 'one' (I can't explain this - if you can you should believe this answer much more).
'the'+'sad'='thesad'
'thesad' is an anagram of 'headst'.
'headst'+'one'='HEADSTONE'
'which' is the link.
Can you help me to learn more?
(Other definitions for headstone that I've seen before include "Its stands over a grave, duly inscribed" , "Slab set at the head of a grave" , "It is set up on a grave with inscriptions" , "Grave marker" , "It marks a grave" .)