Something to go for, fellow! (4)
I believe the answer is:
goal
'something to' is the definition.
I can't judge whether this definition defines the answer.
'go for fellow' is the wordplay.
'for' is a charade indicator (letters next to each other).
'fellow' becomes 'al' (I've seen this in other clues).
'go'+'al'='GOAL'
Can you help me to learn more?
(Other definitions for goal that I've seen before include "... destination (at football?)" , "Crossbar, posts and nets" , "Ambition for a score" , "End" , "Objective, purpose" .)