Possible Clues:

• Being lazy, 23 down has no right to have one instead
• Second-rate individual - one loved, they say, doing absolutely nothing?
• Utterly lazy, won't do a tap
• Leo in bed? This could be the prognosis!
• Very lazy from the inside out
• Very, lazy, almost ossified
• Altogether lazy in ossified way
• Really lazy in ossified way
• Not lifting a finger because of knuckle not working?
• Altogether lazy, in an ossified way