Am a rich bum earning right to comment from here? (8)
I believe the answer is:
armchair
'comment from here?' is the definition.
(as in an armchair critic)
'am a rich bum earning right' is the wordplay.
'bum' indicates an anagram (bum can mean faulty or wrong).
'earning' says to put letters next to each other.
'right' becomes 'r' (common abbreviation).
'am'+'a'+'rich'='amarich'
'amarich' anagrammed gives 'armchai'.
'armchai'+'r'='ARMCHAIR'
'to' is the link.
(Other definitions for armchair that I've seen before include "It's comfortable to sit in" , "Comfy seat" , "Sort of detective" , "Arch Irma perched on comfortable seat" , "Comfortable seat with raised sides" .)