Possible Clues:

• Skinny sort of art. Can you beat that?
• At to in to - just picture it on you
• Indelible design on skin
• Indelible marks drawn on the skin
• Military show drawing on arms, perhaps
• It could be a heart up someone's sleeve
• Only skin deep, so beat it
• Beat this to make it get under your skin
• Your partner's name on your arm, say
• Design on skin - military show