More centralised in a plot that failed to entertain (5)
I believe the answer is:
bored
'failed to entertain' is the definition.
I can't tell whether this defines the answer.
'more centralised in a plot' is the wordplay.
'more centralised' becomes 'or' (I can't explain this - if you can you should believe this answer much more).
'in' indicates putting letters inside.
'a plot' becomes 'bed' (a plot of land).
'or' going within 'bed' is 'BORED'.
'that' is the link.
Can you help me to learn more?
(Other definitions for bored that I've seen before include "Drilled (a hole)" , "Extremely uninterested" , "Unstimulated" , "Drilled; fed up" , "Drilled; wearied" .)