Bishop's vestment (3)
I believe the answer is:
alb
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">bishop's vestment</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 alb that I've seen before include "Clerical gown" , "Priest's long white sleeved vestment" , "ecclesiastical garment" , "White clerical garment" , "the vicar might put on?" .)