Can he whistle for his money? (3)
I believe the answer is:
ref
This might be a double definition.
'can he whistle' is the first definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'his money?' is the second definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'for' is the link.
Can you help me to learn more?
(Other definitions for ref that I've seen before include "Sports official (abbrev.)" , "Sports umpire" , "Whistleblower (abbr)" , "One traditionally in black" , "'Game judge, in short (3)'" .)