Greek alphabet letter (7)
(Other definitions for rho that I've seen before include "Greek character" , "Gr. letter written as P" , "Greek letter R" , "letter to Athens" , "Something like 25 [ETA]" .)
(Other definitions for eta that I've seen before include "When one is due" , "Greek letter - time due (abbr)" , "when you can hope to receive it" , "Letter from abroad" , "When's end of journey predicted" .)
(Other definitions for tau that I've seen before include "letter from foreigner" , "19th letter of the Greek alphabet" , "Greek letter; cross" , "Foreign character" , "Homeric character" .)
(Other definitions for lambda that I've seen before include "Greek character" , "Teasing entertainer" , "character from Greece" , "Eleventh Greek letter" , "part of the skull" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">greek alphabet letter</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 omicron that I've seen before include "A rounded character" , "Greek short 'o'" , "character in Europe" , "old letter" , "letter from 13 [HELLENE]" .)