On paper (2,6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">on paper</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for in theory that I've seen before include "In principal" , "Ideally" , "according to the assumed facts" , "On paper" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">on paper</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for theoretically that I've seen before include "Conjecturally" , "on paper" , "In principle" , "Hypothetically" .)