Part of a stamen (6)
I believe the answer is:
anther
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">part</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I have seen 'Part of plant ' mean 'anther' so perhaps 'part' could also mean 'anther')</span><br/ ><br/ >'<span class="explanation-format__original">a stamen</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >'<span class="explanation-format__original">of</span>' is the link.<br/ ></span>
(Other definitions for anther that I've seen before include "Pollen-containing flower part found in Tehran" , "Ran the pollen into it" , "Part of a flower's stamen that contains pollen" , "Pollen-producing part of a flower" , "Pollen part of flower" .)