Possible Clues:

• It's the opposite of the little sister following the auntie, say
• It isn't shea nuts? I oppose the suggestion
• Reverse taxes in wrong area, doing volte-face
• An ancient tax, son, is quite the contrary!
• Worker has it, he is on island opposite
• What critical PhD examiner may be, showing opposition
• The reverse – is hesitant (anag)
• Opposition article is written about taxes