Wise man in comfy position getting nothing right (6)
I believe the answer is:
nestor
'wise man' is the definition.
(I know that Nestor is wise)
'comfy position getting nothing right' is the wordplay.
'comfy position' becomes 'nest' (nest can mean a comfortable place).
'getting' means one lot of letters go next to another.
'nothing' becomes 'O' (O resembles 0).
'right' becomes 'r' (common abbreviation).
'nest'+'o'+'r'='NESTOR'
'in' is the link.
(Other definitions for nestor that I've seen before include "Oldest, wisest Greek (Trojan Wars)" , "Greek hero and wise counsellor" , "Old man" , "Sage" , "wise old king of Pylos" .)