Swift, say, support at home for idiot (9)
I believe the answer is:
birdbrain
'idiot' is the definition.
The definition and answer can be both people as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'swift say support at home' is the wordplay.
'swift say' becomes 'bird' (swift is a kind of bird).
'support' becomes 'bra' (a support for the breasts).
'at home' becomes 'in' (similar in meaning).
'bird'+'bra'+'in'='BIRDBRAIN'
'for' acts as a link.
Can you help me to learn more?
(Other definitions for birdbrain that I've seen before include "Twittering twit?" , "Silly person (with sparrow's mind?)" , "Fool" , "Stupid" .)