Solar timepiece (7)
I believe the answer is:
sundial
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">solar timepiece</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for sundial that I've seen before include "Old timer?" , "Instrument showing the time" , "Shadow timer" , "Non-mechanical timepiece" , "Primitive timepiece" .)