Ruler has pressure to laugh, only in Royal Albert Hall (7)
I believe the answer is:
pharaoh
'ruler' is the definition.
(I know that Pharaoh is a type of ruler)
'pressure to laugh only in royal albert hall' is the wordplay.
I cannot really understand how this works, but
'pressure' could be 'p' (abbreviation) and 'p' is found within the answer.
'laugh' could be 'har' (I've seen this in another clue) and 'har' is located in the answer.
This explanation may well be incorrect...
'has' is the link.
Can you help me to learn more?
(Other definitions for pharaoh that I've seen before include "Old Egyptian king" , "Royal ruler in ancient Egypt" , "Ancient Egyptian king" , "A Rameses maybe" , "Tut, in brief, was one" .)