Possible Clues:

• Give less than one's all
• Cook insufficiently
• Maybe Merlot left open for dressing ham? Quite the reverse!
• Barely cook, say
• Rarely cook less than 500 duck
• Not cook enough
• Partly blood-red, nudist gets up to leave half-baked
• Fall short with
• Cook in a bad way, unconscious before party
• Make rare contribution to sounder dogma