Special paintings of a certain type harbour misery (10)
I believe the answer is:
spoilsport
'misery' is the definition.
(I've seen this before)
'special paintings of a certain type harbour' is the wordplay.
'special' becomes 'sp' (abbreviation).
'paintings of a certain type' becomes 'oils' (I can't justify this - if you can you should believe this answer much more).
'harbour' becomes 'port' (I've seen this before).
'sp'+'oils'+'port'='SPOILSPORT'
Can you help me to learn more?
(Other definitions for spoilsport that I've seen before include "One who reduces others' pleasure" , "One who won't play?" , "Damper" , "Wet blanket" , "Party pooper" .)