[Blob] I think this what Manley calls "A clue to a clue"; but didn't you know you can excuse anything with a question mark. In any case as Raak and Darren point out, it's an &lit clue. This type of clue is what people entering the Azed clue-writing competition usually aim for. Often with disastrous consequences, as it's extremely difficult to get a clue that is both crossword-grammatically correct and furnish a sound definition of the whole.
Meanwhile I'd like to point out, though I will suspect none will care, that the 'Extended overhaul' of the DJ Shadow track 'Organ Donor' (on the Preemptive Strike compilation) is a triumph.