Professor (3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">professor</span>' is the definition.<br/ ><span class="explanation-format__explanation">(term for a university professor)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for don that I've seen before include "Put on or assume" , "Mafia chief or Spanish title" , "Yorkshire river" , "European river" , "Put on the learned man" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">professor</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for emeritus that I've seen before include "Rue items that describe person retired but retaining title" , "Use remit for retained title of retired professional" , "Retired and retaining title, say professor" , "Keeping rank, retired" , "Honorary title" .)