Thin person damaged chrome pot (9)
I believe the answer is:
ectomorph
'thin person' is the definition.
Both the definition and answer are singular nouns.
Perhaps you can see a link between them that I can't see?
'damaged chrome pot' is the wordplay.
'damaged' is an anagram indicator.
'chrome'+'pot'='chromepot'
'chromepot' anagrammed gives 'ECTOMORPH'.
Can you help me to learn more?
(Other definitions for ectomorph that I've seen before include "especially delicate type" , "Lean creature" , "Lean-bodied person" , "Weed" .)