Mark or dot (7)
I believe the answer is:
speckle
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">mark</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >'<span class="explanation-format__original">dot</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I have seen 'Little dot' mean 'speckle' so perhaps 'dot' could also mean 'speckle')</span><br/ ><br/ >'<span class="explanation-format__original">or</span>' is the link.<br/ ></span>
(Other definitions for speckle that I've seen before include "Little dot" , "Small patch of colour" , "pepper with colour" , "Small mark on skin" , "Small spot of colour" .)