Save up four euros to be non-committal (7)
I believe the answer is:
evasive
'non-committal' is the definition.
Both the definition and answer are adjectives.
Perhaps you can see a link between them that I don't see?
'save up four euros' is the wordplay.
'up' is a reversal indicator (in down clue: letters go upwards).
'four' becomes 'IV' (Roman numerals).
'euros' becomes 'E'.
'save' back-to-front is 'evas'.
'evas'+'iv'+'e'='EVASIVE'
'to be' is the link.
Can you help me to learn more?
(Other definitions for evasive that I've seen before include "Deliberately vague" , "make out-of-the-way sort of action" , "Not frank, shifty" , "Avoiding answering" , "Trying to avoid commitment" .)