Forced into space with limit on payload, ultimately (6)
I believe the answer is:
wedged
'forced' is the definition.
('wedge' can be a synonym of 'force')
'with limit on payload ultimately' is the wordplay.
'with' becomes 'w' (abbreviation).
'limit' becomes 'edge' (I've seen this in another clue).
'on' says to put letters next to each other.
'ultimately' indicates one should take the final letters.
The last letter of 'payload' is 'd'.
'w'+'edge'+'d'='WEDGED'
'into space' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for wedged that I've seen before include "Stuck" , "Packed, squeezed in" , "Forced into a narrow space" , "Packed tightly between other things" , "Jammed in between other things" .)