Related Clues:

• Grows less ardent
• Solidifies, perhaps
• Loses enthusiasm for schoolmaster removing hamster
• Sits on the counter, say
• Cools
• Does gentle stretching post-exercise, with 'down'
• Comes to room temperature, say
• Lets off steam?
• Becomes less hot
• Sits on a sill, as a pie
• Sets on a rack after baking