Former county (4)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">former county</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for avon that I've seen before include "Former English county" , "River running through Bath" , "[WILTS] flower" , "Bath's river" , "Casual attitude" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">former county</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that Middlesex is a former county)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for middlesex that I've seen before include "Cricketers" , "Cricketing county" .)