Shore bird raised tail, having intelligence (6)
I believe the answer is:
godwit
'shore bird' is the definition.
(I know that godwit is a type of shore bird)
'raised tail having intelligence' is the wordplay.
'raised' says the letters should be written in reverse (going up in a down clue).
'tail' becomes 'dog' (both can mean to follow).
'having' means one lot of letters go next to another.
'intelligence' becomes 'wit' (wit is a kind of intelligence).
'dog' back-to-front is 'god'.
'god'+'wit'='GODWIT'
(Other definitions for godwit that I've seen before include "Long-legged northern shore bird" , "Long-billed wader" , "Large wading bird" , "Wader; two dig (anag.)" , "Flyer" .)