Related Clues:

• Going on and on outside without 'The Times'?
• Not bound by 20-Across
• Neverending
• Unfading
• Log base with bird on a line is constant
• 10 with real potential never finishing
• Enter failure against article by student out of time
• The beginning of Lowry's Under the 17 down, without hesitation, is timeless
• Little boy in late return going on and on
• Endless dinner, for instance, without starter but including bird
• Point learnt afresh, always to be remembered
• Incorruptible Queen's name amid the raised dead
• Constant distress alter one, nonetheless
• Point learnt afresh for all time
• There's no end of such things