United, under Solskjaer’s lead, moved quickly (7)
I believe the answer is:
steamed
'moved quickly' is the definition.
'steamed' can be an answer for 'moved' (steaming is a kind of moving). I'm not certain of the 'quickly' bit.
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for steamed that I've seen before include "Cooked in vapour" , "Proceeded with course" , "got really hot" , "Cooked over hot water" , "cooked a certain way" .)