Possible Clues:

• Legendary Viking king with links to Ivarr the Boneless (variant spelling)
• -- Bubba (bubble gum brand)
• Start of an ogler's cry
• When repeated, an enthusiastic shout
• Half a wolf's cry
• When doubled, 'I like!'
• __ Bubba: gum brand
• When repeated, a luster's cry
• When doubled, a wolf's call
• When repeated, ''What a hottie!''