Practically forever (5)
(Other definitions for aeons that I've seen before include "Vast ages" , "Long periods of time" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">practically forever</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 eon that I've seen before include "Geological period" , "Immense period" , "In time, long division" , "Vast period" , "An immense time" .)