Possible Clues:

• Professor 'iggins
• Professor Higgins, to Eliza
• 'Just you wait, ___ 'iggins ...'
• Eliza's 'iggins
• 'Just you wait, ___ 'iggins...'
• Eliza's tutor, to Eliza
• Professor 'iggins, to Eliza Doolittle
• Prof. 'iggins, to Eliza
• Elision from Eliza
• "But all I want is __ 'iggins' 'ead!": "My Fair Lady" lyric