The crossword solutions for the term 'Yea Sayer' are TOADY (5 letters) and PRO (3 letters). A yea sayer is someone who agrees with or supports a particular opinion, idea, or plan. TOADY is a derogatory term for someone who flatters or obeys another person in order to gain favor or advantage. PRO is an abbreviation for professional, which implies that the person is experienced and knowledgeable in their field. Therefore, a yea sayer is someone who is willing to flatter or obey another person in order to gain favor or advantage, and is also experienced and knowledgeable in their field.