... but change over login bad for one’s pride (9)
I believe the answer is:
vainglory
'pride' is the definition.
(vainglory is a kind of pride)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for vainglory that I've seen before include "Outspoken conceit" , "Extreme vanity or boastfulness" , "displaying great conceit" , "Boastfulness (lit.)" , "Swagger" .)