Astronomer; astrologer (9)
I believe the answer is:
stargazer
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">astronomer</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that astronomer can be written as stargazer)</span><br/ ><br/ >'<span class="explanation-format__original">astrologer</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for stargazer that I've seen before include "Astronomer or astrologer" , "Looker-up at night" , "I look at the Sun" , "Astronomer, or dreamer" , "Daydreamer" .)