Like Scrooge when squiffy? (5)
I believe the answer is:
tight
'squiffy?' is the definition.
(I know that squiffy can be written as tight)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for tight that I've seen before include "Parsimonious" , "Miserly (informal) - drunk (informal)" , "Secretive, drunk (colloq.)" , "Drunk - under control" , "Drunk - a near thing!" .)