For a song (7)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">for a song</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for cheaply that I've seen before include "in a despicable manner" , "At a low price" , "Inexpensively" , "at little cost" .)