Small harpsichord (6)
I believe the answer is:
spinet
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small harpsichord</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 spinet that I've seen before include "A small harpsichord of old" , "Instrument resembling a small harpsichord" , "organ" , "Instep (anag)" , "Step in with old musical instrument" .)