Repair faulty item quickly near destination (4,4,4)
I believe the answer is:
make good time
'repair faulty' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.
'item quickly near destination' is the wordplay.
I cannot really understand how this works, but
an anagram of 'item' is 'time' which is present in the answer.
'near' could be 'good' (synonyms) and 'good' is found in the answer.
The remaining letters 'make' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for make good time that I've seen before include "Achieve speedy progress (on journey)" , "Progress well (on journey)" .)