Beelzebub

[doctordolittle]

Delicate in bearing, mostly religious but not initially (8) ?en?ious

Thanks

[Lie-in King]

Tenuious (rare "tenuous"; delicate, slender) - 'tenu(e)' (bearing, mostly) + '(p)ious'

[Hypognosis]

Shouldn't archaic words be flagged up in the clue, in some way?

How the heck is anyone supposed to guess something that looks like a spelling error?

Do you want me to send the boys round to the setter's house?

(Well done L-I-K. I had to force Google into -not- searching "tenuous", so was that thanks to knowledge of obscure words?)