All right in part (4-7)
I believe the answer is:
word-perfect
'all right' is the definition.
'word-perfect' can be an answer for 'right' (similar in meaning). I am unsure of the 'all' bit.
'part' is the wordplay.
I cannot quite see how this works, but
'part' could be 'word' (word is a kind of part) and 'word' is present in the answer.
The remaining letters 'perfect' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'in' is the link.
Can you help me to learn more?
(Another definition for word-perfect that I've seen is " Knowing one's lines by heart".)