Possible Clues:

• "...for ___ care!"
• GlaxoSmithKline obesity drug
• 'That is — ask'
• ''That's __ want to know''
• Obesity drug Orlistat, over the counter
• 'That's ___ need'
• '___ Want for Christmas Is You'
• "— want for Christmas ..."
• “___ Want for Christmas Is You”
• “___ Have” (2003 #1 hit for Jennifer Lopez with LL Cool J)