Just perfect (5)
I believe this clue is a double definition.
'just' is the first definition.
(similar in meaning)
'perfect' is the second definition.
(thesaurus)
(Other definitions for right that I've seen before include "Equitable" , "correctly" , "Most favourable" , "''The customer is always .....''" , "Legal entitlement" .)
'just perfect' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ideal that I've seen before include "faultless" , "Textbook" , "highly desirable" , "Cutting/stabbing weapons" , "fine" .)