Danish city (6)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">danish city</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 odense that I've seen before include "in Denmark?" , "foreign port?" , "Foreign city" , "Danish city" , "where Canute founded a cathedral" .)