Pyjamas designed with anger (9)
I believe the answer is:
nightwear
'pyjamas' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'designed with anger' is the wordplay.
'designed' is an anagram indicator (designed with the letters).
'with'+'anger'='withanger'
'withanger' anagrammed gives 'NIGHTWEAR'.
Can you help me to learn more?
(Other definitions for nightwear that I've seen before include "What's put on kippers" , "What's on after the watershed" , "Bed clothing (W, not G)" , "evening dress" , "Clobber after hours" .)