Hail Mary, eg (6)
I believe the answer is:
prayer
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">hail mary eg</span>' is the definition.<br/ ><span class="explanation-format__explanation">(hail mary is a kind of prayer)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for prayer that I've seen before include "Addressed God" , "Maybe collect" , "An appeal to a deity" , "Litany" , "Earnest request" .)