Diminish gradually (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">diminish gradually</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for dwindle that I've seen before include "Become steadily less" , "Grow less - waste away" , "Flag" , "Diminish gradually" , "Lessen; fade out" .)
(Other definitions for decrease that I've seen before include "Iron out the wrinkles" , "Reduction" , "Become smaller or fewer" , "cut back" , "Diminish, lessen" .)