Possible Clues:

• It's enough to make one throw up and be an artist in the end
• It's enough to make you 27 across to sound such a miscreant
• Strain as if to be sick
• Gag, when the poor thing is decapitated
• By the sound of it, throw out your hand and throw up
• Gag poor soul delivered to the audience
• To work as an artist at last is enough to make you sound sick of it
• Vessel's got a new number one - prepare to be sick!
• Try to bring up some secret children
• It's enough to make you sick to have to scratch around like this at last