Tenth anniversary gift (3)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">tenth anniversary gift</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 tin that I've seen before include "loaf of bread" , "roofing material" , "Element, symbol Sn" , "Ready" , "A silvery-white metal, symbol Sn" .)