According to the audio commentary on “Treehouse Of Horror III,” some of the creative folks at The Simpsons were concerned that the “Treehouse Of Horror” franchise had outworn its welcome and was rapidly running out of classic horror or science-fiction fodder to spoof.

In (part of) Shelley's poem Ozymandias is a "crumbling statue". If this is the explanation then the clue is not a reverse cryptic in the same was[sic] as GEGS -> SCRAMBLED EGGS but a normal clue where where the fodder and anagrind are *both* indirect.