Good old boy allowed to see Grail? (6)
I believe the answer is:
goblet
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">grail?</span>' is the definition.<br/ ><span class="explanation-format__explanation">(grail is a kind of goblet)</span><br/ ><br/ >'<span class="explanation-format__original">good old boy allowed to</span>' is the wordplay.<br/ >'<span class="explanation-format__original">good</span>' becomes '<span class="explanation-format__intermediate">g</span>' <span class="explanation-format__explanation">(abbreviation)</span>.<br/ >'<span class="explanation-format__original">old boy</span>' becomes '<span class="explanation-format__intermediate">OB</span>' <span class="explanation-format__explanation">(abbreviation for a private school 'old boy')</span>.<br/ >'<span class="explanation-format__original">allowed to</span>' becomes '<span class="explanation-format__intermediate">let</span>' <span class="explanation-format__explanation">(to let something happen is to allow it)</span>.<br/ >'<span class="explanation-format__intermediate">g</span>'+'<span class="explanation-format__intermediate">ob</span>'+'<span class="explanation-format__intermediate">let</span>'='<span class="explanation-format__answer">GOBLET</span>'<br/ ><br/ >'<span class="explanation-format__original">see</span>' is the link.<br/ ></span>
(Other definitions for goblet that I've seen before include "Drinking-glass with stem and foot" , "Large drinking cup" , "Drinking glass with stem and foot" , "Chalice" , "Large drinking glass with stem and base" .)