Son, irate, panned mocking work (6)
I believe the answer is:
satire
'work' is the definition.
(I've seen this before)
'son irate panned mocking' is the wordplay.
I cannot quite see how this works, but
'son' could be 's' (genealogical abbreviation for son) and 's' is found in the answer.
an anagram of 'irate' is 'atire' which is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for satire that I've seen before include "Political humour" , "Language saying one thing but implying the opposite" , "burlesque" , "Lampoon" , "work with cutting devices?" .)