Head of organisation, sullen, getting a smaller amount, unperfumed (9)
I believe the answer is:
'unperfumed' is the definition.
Both the definition and answer are adjectives.
Perhaps they are linked in a way I don't understand?
'head of organisation sullen getting a smaller amount' is the wordplay.
'head of' suggests taking the first letters.
'sullen' becomes 'dour' (synonyms).
'getting' says to put letters next to each other.
'a smaller amount' becomes 'less' (I've seen this before).
The initial letter of 'organisation' is 'o'.
Can you help me to learn more?
(Other definitions for odourless that I've seen before include "Without smell" , "Lacking smell" , "Unscented" , "free from smell" , "without bouquet" .)