Ingratiate oneself (5,6)
(Other definitions for curry favour that I've seen before include "toady" , "Bow and scrape" , "Seek to ingratiate oneself" , "Suck up" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ingratiate oneself</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 endear that I've seen before include "Make attractive or lovable" , "Make appeal" , "Charm, captivate" , "Make loveable" , "Make love" .)