2 Down, Runs into crazy,crazy nut,one on a substantial scale (10)
?A???N????
5 Down, Headless giant captured by wan English artist (4,4) ?A?L ?L??
6 Down, Successful student in pair shortly tucking into jar (8) ?R?D????
23 Across, It's wrong to involve number in burying (9) NO LETTERS
Compiler - PHI
Many Thanks