Wanting Momentum to put party type before people (10)
I believe the answer is:
stagnation
'wanting momentum' is the definition.
'party type before people' is the wordplay.
'party type' becomes 'stag' (type of party).
'before' means one lot of letters go next to another.
'people' becomes 'nation'.
'stag'+'nation'='STAGNATION'
'to put' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.
(Other definitions for stagnation that I've seen before include "standstill" , "Lack of activity" , "Inactivity" , "Failure to develop" , "sluggish" .)