Annoyingly, stuck on 5, all interconnected, which is adding to the bafflement.
27A - Lacking energy, recommend imbibing a liqueur (8)
?D???A?T
23D - Royal attendant takes time dipping into travel guide (8)
???A?I??
40A - Discharge third person overcome by drink (5)
??E??
41D - Financial obsessive accepts knighthood, finding source of oil (6, 3)
??N?E? N??
&
55A - Rummage bishop kept in parts of yard (60
?E?R??
I can't spot anything wrong with any of the letters I have cited, but that doesn't amount to a complete guarantee.
Gratitude for all assistance will follow tomorrow.