Bend rule over V&A replacing lecturer in the arts (9)
I believe the answer is:
curvature
'bend' is the definition.
(I've seen this before)
'rule over va replacing lecturer in the arts' is the wordplay.
I cannot really understand how this works, but
'rule' could be 'r' (legal abbreviation) and 'r' is located in the answer.
'over' could be 're' and 're' is located in the answer.
'va' is within the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for curvature that I've seen before include "Bend" , "Degree of bending" , "Continual bending" .)