Astronomical bear (4)
I believe the answer is:
ursa
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">astronomical bear</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 ursa that I've seen before include "Major and Minor, the Bear constellations" , "Bear (constellation)" , "(In the sky) Major or Minor" , "stars" , "Constellation (Major or Minor)" .)