Palindromic title
(Other definitions for maam that I've seen before include "Lady's address" , "Polite address to Queen" , "Formal address to a lady" , "Royal address" , "Respectful address to the Queen" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">palindromic title</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 madam that I've seen before include "Woman of standing" , "What you would call a female customer (or a spoiled girl!)" , "Titled lady" , "precocious schoolgirl?" , "Term of address to a woman" .)