Moved fast in an attempt to score (4)
I believe the answer is:
shot
'an attempt to score' is the definition.
(I've seen this in another clue)
'moved fast' is the wordplay.
'moved' becomes 's' (I can't explain this - if you can you should give a lot more credence to this answer).
'fast' becomes 'hot' (similar in meaning).
's'+'hot'='SHOT'
'in' is the link.
Can you help me to learn more?
(Other definitions for shot that I've seen before include "Fired from a weapon" , "Snap" , "Gunned down - go - guess" , "Sound of gun" , "Small drink of liquor" .)