Very large like Henry VIII's bed? (4-4)
I believe the answer is:
king-size
'very large' is the definition.
(I've seen this before)
'henry viii's bed?' is the wordplay.
'henry' becomes 'king' (Henry VIII etc).
'viii's bed?' becomes 'size' (I can't justify this - if you can you should believe this answer much more).
'king'+'size'='KING-SIZE'
'like' is the link.
Can you help me to learn more?
(Other definitions for king-size that I've seen before include "Larger than normal" , "Extra large, bed perhaps" , "Extra large as for monarch" .)