Soccer club stadium incorporates small lake (7)
I believe the answer is:
arsenal
'soccer club' is the definition.
'arsenal' can be an answer for 'club' (I've seen this before). I'm unsure of the 'soccer' bit.
'stadium incorporates small lake' is the wordplay.
'stadium' becomes 'arena' (eg a sports arena).
'incorporates' means one lot of letters goes inside another.
'small' becomes 's' (abbreviation - e.g. clothes size).
'lake' becomes 'L' (geographical abbreviation).
'arena' placed around 's' is 'arsena'.
'arsena'+'l'='ARSENAL'
Can you help me to learn more?
(Other definitions for arsenal that I've seen before include "Premier League side founded by munitions workers in 1886" , "London football club - magazine" , "Place where guns and ammunition are stored" , "Eleven" , "favoured by some football supporters" .)