Little singer has some attitude (3)
I believe the answer is:
tit
'little singer' is the definition.
'tit' can be an answer for 'singer' (type of songbird). I am not sure about the 'little' bit.
'some attitude' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'TIT' is hidden within 'attitude'.
'has' is the link.
Can you help me to learn more?
(Other definitions for tit that I've seen before include "useless horse, or not?" , "Small songbird" , "Boob made backing" , "What you swap for tat" , "Small garden bird" .)