Portuguese navigator (8)
I believe the answer is:
magellan
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">portuguese navigator</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for magellan that I've seen before include "S American strait named for 16th century Portuguese explorer" , "Portuguese navigator who crossed the Pacific" , "Strait between Atlantic and Pacific oceans" , "Major strait between the Atlantic and Pacific" , "Portuguese navgator" .)