Got constant amount of paper across which to display advert (8)
I believe the answer is:
acquired
'got constant amount of paper across which to display advert' is the definition.
'acquired' can be an answer for 'got' (I've seen this before). I am not certain of the rest of the definition.
'paper across which to display advert' is the wordplay.
I cannot quite see how this works, but
'paper' could be 'quire' (paper measurement) and 'quire' is located in the answer.
'across' could be 'ac' (I've seen this in other clues) and 'ac' is found within the answer.
A single letter 'd' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for acquired that I've seen before include "'Got, gained (8)'" , "Came by, obtained" , "Came to possess" , "Obtained or procured" , "Bought" .)