Headache (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">headache</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that migraine is a type of headache)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for migraine that I've seen before include "Severe recurrent headache" , "Severe recurring headache" , "Throbbing inside the head" , "It brings severe headache" , "may give one a sort of headache" .)
(Other definitions for sinus that I've seen before include "Space in temple" , "Cavity within a bone" , "Cavity in the facial bones" , "Anatomical cavity" , "Air-filled cavity of the skull" .)