Briefly (2,1,8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">briefly</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 a nutshell that I've seen before include "essentially" , "To cut a long story short" , "Briefly, concisely" , "Brazil's location" , "to be concise" .)
(Other definitions for in short that I've seen before include "To sum up, briefly" , "Concisely" , "to be brief" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">briefly</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 in a word that I've seen before include "summing up" , "Where a number of characters may be found" , "Where letters are usually found" , "concise" , "Briefly - won raid (anag)" .)