Full of substance (5)
I believe the answer is:
meaty
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">full of substance</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for meaty that I've seen before include "Brawny; full of substance" , "Full of substance, nourishment" , "Substantive -- like beef or pork?" , "Full of substance, flesh" , "Substantial, solid" .)