Strata (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">strata</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 layers that I've seen before include "egg producers" , "bands" , "fowl?" , "Strata - hens" , "Thicknesses of material - or hens?" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">strata</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 tiers that I've seen before include "Layers of rites" , "Rows; levels" , "Row upon row" , "More than one bank" , "Rows; ranks" .)