Regain ground when working properly (2,4)
I believe the answer is:
in gear
'working properly' is the definition.
'in gear' can be an answer for 'working' (to be in gear is to be working or functioning). I am unsure of the 'properly' bit.
'regain ground' is the wordplay.
'ground' is an anagram indicator ('grind' the letters into a new form).
'regain' is an anagram of 'IN GEAR'.
'when' is the link.
Can you help me to learn more?
(Other definitions for in gear that I've seen before include "Dressed up" , "like moving heaps?" , "Engaged" , "Working effectively" , "Performing effectively" .)