Exert (9)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">exert</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for strain that I've seen before include "Remove by passing through a filter" , "Overtired" , "Tension - tune" , "Filter - intense effort" , "Sieve; breed" .)
(Other definitions for endeavour that I've seen before include "Try to achieve something" , "The first handle inspector has" , "Determined attempt" , "Undertaking" , "Try - Cook's ship" .)