Some are negotiable with prams (5)
I believe the answer is:
ramps
'some are negotiable' is the definition.
I can't judge whether this definition defines the answer.
'prams' is the wordplay.
'prams' can be anagrammed to 'RAMPS'.
But, I am not sure how this is indicated.
'with' is the link.
Can you help me to learn more?
(Other definitions for ramps that I've seen before include "Small road ridges for prams" , "Slopes to calm traffic" , "Gradients" , "Slopings passages" , "Sloping passages" .)