Norwegian sea inlet (5)
I believe the answer is:
fiord
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">norwegian sea inlet</span>' is the definition.<br/ >'<span class="explanation-format__answer">fiord</span>' can be an answer for '<span class="explanation-format__original">inlet</span>' <span class="explanation-format__explanation">(fiord is a kind of inlet)</span>. I also know that both 'norwegian' and 'sea' relate to this answer.<br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for fiord that I've seen before include "Long narrow sea inlet between high cliffs" , "Deep sea inlet as in Norway" , "Long, steep inlet from the sea" .)