Scout about to take part in soccer! (5)
I believe the answer is:
recce
'scout' is the definition.
(I've seen this before)
'to take part in soccer' is the wordplay.
'to take' becomes 'r' (recipe is latin for take - r is abbreviation).
'part in soccer' becomes 'ecce' (I can't explain this - if you can you should believe this answer much more).
'r'+'ecce'='RECCE'
'about' acts as a link.
Can you help me to learn more?
(Other definitions for recce that I've seen before include "Scouting expedition (colloq.)" , "Preliminary investigation" , "See how the land lies (informal)" , "Preliminary survey" , "Check out" .)