Former pupil (3,3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">former pupil</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for alumnus that I've seen before include "Former school pupil" , "Former pupil or student" , "(US) college graduate" , "Past pupil" , "Ex-pupil" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">former pupil</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for old boy that I've seen before include "Alumnus (with network)" , "I say, it's a former school chum" , "Former pupil - kind of network" , "my dear chap!" , "Former member of a school" .)