Possible Clues:

• Friend of George and Elaine
• Cartoon mouse
• He may be slapdash in assembling
• & 24 Across Eccentric Rye jeweller is rock and roller
• - - Hall, model and actress
• Tom's prey, in cartoondom
• Hanna-Barbera mouse
• Ben's partner
• Comic Lewis
• Tom's prey, in cartoons