One who takes control over Arsenal's wingers (7)
I believe the answer is:
stealer
'one who' is the definition.
The definition suggests a singular noun which matches the answer.
'control over arsenal's wingers' is the wordplay.
'control' becomes 'steer' (steering is a kind of controlling).
'over' means one lot of letters goes inside another.
'wingers' suggests removing the centre (letters on the edges or wings of the word).
'arsenal' with its centre taken out is 'al'.
'steer' placed around 'al' is 'STEALER'.
'takes' acts as a link.
Can you help me to learn more?
(Another definition for stealer that I've seen is " Criminal".)