Bird also goes round a different bird (8)
I believe the answer is:
cockatoo
'different bird' is the definition.
'cockatoo' can be an answer for 'bird' (I've seen this before). I am unsure of the 'different' bit.
'bird also goes round a' is the wordplay.
'bird' becomes 'cock' (cock is a kind of bird).
'also' becomes 'too' (synonyms).
'goes round' is an insertion indicator.
'cock'+'too'='cocktoo'
'cocktoo' going around 'a' is 'COCKATOO'.
Can you help me to learn more?
(Other definitions for cockatoo that I've seen before include "Illegal Aussie look-out man" , "Bird, a type of parrot" , "Australian parrot" , "Parrot native to Australia and Indonesia" , "White parrot" .)