Small cave with religious connotations (6)
I believe the answer is:
grotto
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">small cave with religious connotations</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for grotto that I've seen before include "Pretty cave" , "Small picturesque cave" , "Attractive natural, or artificial, cave" , "In company (with); over length of" , "Fancy cave" .)