Realise Daisy is a source of easy money (7)
'a source of easy money' is the definition.
(a cash cow is a reliable way of making money)
'realise daisy' is the wordplay.
'realise' becomes 'cash' (realise can mean to convert into cash).
'daisy' becomes 'cow' (daisy can informally mean a cow).
'cash'+'cow'='CASH COW'
'is' is the link.
(Other definitions for cash cow that I've seen before include "money-spinner" , "producing high market share" , "Lucrative activity" , "Product or business making easy money" , "profitable business" .)
'a source of easy money' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'realise daisy' is the wordplay.
'realise' becomes 'cash' (realise can mean to convert into cash).
'daisy' becomes 'cow' (daisy can informally mean a cow).
'cash'+'cow'='CASHCOW'
'is' is the link.
Can you help me to learn more?