Possible Clues:

• Halo of the washing sponge?
• Greet the idiot back there for the bath
• 2 x 0 in half in bath
• Have starters of fruit pudding but returned sponge
• Tropical sponge
• Sponge used in a 39-Across
• Greet the idiot up there with a washer
• Half twice nothing for the 33 down
• Plant that's cut has sap rising
• Rough sort of sponge