Panel is ordered by Earl? That’s fine! (8)
I believe the answer is:
penalise
'fine' is the definition.
(I've seen this before)
'panel is ordered by earl?' is the wordplay.
'ordered' indicates anagramming the letters.
'by' means one lot of letters go next to another.
'earl?' becomes 'e'.
'panel'+'is'='panelis'
'panelis' is an anagram of 'penalis'.
'penalis'+'e'='PENALISE'
'that's' is the link.
(Other definitions for penalise that I've seen before include "Inflict punishment on" , "Perhaps, fine" , "Disadvantage unfairly" , "See plain (anag.)" .)