Austral (8)
I believe the answer is:
southern
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">austral</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for southern that I've seen before include "Austral" , "Of Counties Cork and Kerry, say" , "Towards the Antarctic" , "From below the Mason-Dixon Line" , "-- Cross, constellation" .)