Choppy sea, ultimately stormy, not a problem (4)
I believe the answer is:
easy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">not a problem</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">choppy sea ultimately stormy</span>' is the wordplay.<br/ >'<span class="explanation-format__original">choppy</span>' is an anagram indicator.<br/ >'<span class="explanation-format__original">ultimately</span>' suggests the final letters.<br/ >The last letter of '<span class="explanation-format__original">storm<span class="explanation-format__em">y</span></span>' is '<span class="explanation-format__intermediate">y</span>'.<br/ >'<span class="explanation-format__original">sea</span>' anagrammed gives '<span class="explanation-format__intermediate">eas</span>'.<br/ >'<span class="explanation-format__intermediate">eas</span>'+'<span class="explanation-format__intermediate">y</span>'='<span class="explanation-format__answer">EASY</span>'<br/ ></span>
(Other definitions for easy that I've seen before include "Effortless, uncomplicated" , "careful!" , "Obliging; go carefully" , "Posing no difficulty" , "Undemanding" .)