Struggle to use cushions? (6,5)

I believe the answer is:
pillow fight
'struggle to use cushions?' is the definition.
I can't judge whether this defines the answer.
'struggle to use cushions?' is the wordplay.
'struggle' becomes 'fight' (synonyms).
'to' says to put letters next to each other (I've seen this in other clues).
'use cushions?' becomes 'pillow' (I can't justify this - if you can you should give a lot more credence to this answer).
'fight' put after 'pillow' is 'PILLOW-FIGHT'.
Can you help me to learn more?
(Other definitions for pillow fight that I've seen before include "Mock battle in bedroom" , "Bedroom conflict" , "Dormitory battle" , "Bedroom battle (where feathers fly?)" .)
