Managing to get liquefied (7)
I believe the answer is:
running
'managing' is the definition.
(running is a kind of managing)
'get liquefied' is the wordplay.
I cannot quite see how this works, but
'get' could be 'run' (running is a kind of getting) and 'run' is present in the answer.
This explanation may well be incorrect...
'to' acts as a link.
Can you help me to learn more?
(Other definitions for running that I've seen before include "In operation" , "Organising" , "White City event" , "No chance if you're out of it" , "cross-country event?" .)