Mrs Mop (7)

I believe the answer is:
cleaner
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mrs mop</span>' is the definition.<br/ ><span class="explanation-format__explanation">(1940s British radio character)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for cleaner that I've seen before include "Maybe Daily" , "Chemical agent for removing dirt" , "Charlady" , "Daily help" , "less sleazy?" .)