Related Clues:

• How a lack of assurance leads to a lack of colour
• Pale and fowl-like
• A retiring way not to be beyond the pale
• A retiring pale might have been in the fire
• Not a forward pale
• Pale enough to have a throw at it
• Have a throw at what's been burnt grey
• Lacking much hue
• Covered in soot
• The likes of a grey, burnt fowl
• One retiring pale (4)
• As foul-sounding as it's pale
• Not beyond the pale in such a foul-sounding fashion
• A retiring way as hen might make it
• Pale enough to look foul-like, perhaps