I shout out loud and stare (7)
I believe the answer is:
eyeball
'stare' is the definition.
(I've seen this before)
'i shout out loud' is the wordplay.
'i' becomes 'eye' (I've seen this in other clues).
'shout' becomes 'bawl' (I've seen this before).
'out loud' indicates a 'sounds like' (homophone) clue.
'bawl' sounds like 'ball'.
'eye'+'ball'='EYEBALL'
'and' acts as a link.
(Other definitions for eyeball that I've seen before include "" - to - " = in close confrontation" , "Ocular orb" , "making us stare" , "Look confrontationally" , "Stare at closely (colloq.)" .)