Angle symbol (3)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">angle symbol</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for theta that I've seen before include "letter from Argos?" , "Character from overseas" , "8th letter of the Greek alphabet" , "letter from abroad" , "Greek letter equivalent to th" .)
(Other definitions for phi that I've seen before include "Letter from the Balkans" , "21st Greek letter" , "exotic character" , "Greek letter; sounds like expression of outrage" , "One Greek" .)