Be indebted to (3)
(Other definitions for ore that I've seen before include "Mineral deposit" , "Naturally occurring mineral" , "not worth a lot to Danes" , "Raw material" , "Unwrought iron" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">be indebted to</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for owe that I've seen before include "overdrawn" , "Be obliged to pay" , "Be in the red" , "Be indebted" , "Be beholden" .)