Blow-out meal — Henry breaks refusal to drink (4-2)
I believe the answer is:
nosh-up
'blow-out meal' is the definition.
I can't judge whether this definition defines the answer.
'henry breaks refusal to drink' is the wordplay.
'henry' becomes 'H' (symbol for the unit of electrical inductance).
'breaks' means one lot of letters goes inside another (inserted letters break into the word).
'refusal' becomes 'no' (it's a no).
'to drink' becomes 'sup' (to sup is to drink).
'no'+'sup'='nosup'
'h' going inside 'nosup' is 'NOSH-UP'.
Can you help me to learn more?
(Other definitions for nosh-up that I've seen before include "Satisfying meal" , "Large meal (informal)" , "Large meal (colloq.)" , "Big meal (slang)" , "Good meal (informal)" .)