Apartments (5)
(Other definitions for units that I've seen before include "Apparatus similar to barbecue" , "Figure on the right" , "Individual things as parts of a whole" , "Detachments" , "Measures of alcohol" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">apartments</span>' is the definition.<br/ ><span class="explanation-format__explanation">('flat' can be a synonym of 'apartment')</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for flats that I've seen before include "As opposed to sharps?" , "Apartments" , "Punctures" .)