Strike out in fear, apparently (3)
I believe the answer is:
rap
'strike' is the definition.
(synonyms)
'in fear apparently' is the wordplay.
'in' says the answer is hidden in the clue.
'RAP' is hidden within 'fear apparently'.
'out' acts as a link.
(Other definitions for rap that I've seen before include "Pounding" , "African-American music in which the lyrics are spoken" , "Smack (knuckles)" , "Sharp knock; rebuke" , "Small amount" .)