Possible Clues:

• Parliament rises, having held power without passion
• Rejected girl has a huff - but it's not very heated
• Just a little 21 down
• Lukewarm feeling Heath has about Greek character
• About the �Hardly Any Protein Diet,� is oddly unenthusiastic
• Having moderate heat
• Starts to tackle each puzzle inattentively - definitely half-hearted
• Lukewarm food served up, including pie crust
• Unenthusiastic in assembly about carrying piano
• Hardly rah-rah