Related Clues:

• Kebab mix binned -- it's very oily
• Gaudy insect on outside of tree
• Swagged out
• Glib; oil spill
• Loud little boy turned modest
• Smooth in manners
• Slippery, as an icy road
• Ostentatiously impressive wood lining old carriage
• Loud, like lightning?
• Flamboyant Alf turned bashful
• Film of oil on water
• Attention-seeking — showy
• Disgusted over large area of oil on water
• Loud insect circling wood
• Certain ocean pollution