Strong attack by general on team (9)
I believe the answer is:
broadside
'strong attack' is the definition.
'broadside' can be an answer for 'attack' (broadside is a kind of attack). I'm unsure of the 'strong' bit.
'general on team' is the wordplay.
'general' becomes 'broad' (similar in meaning).
'on' says to put letters next to each other (in a down clue, letters appear on others).
'team' becomes 'side' (both can mean a sports team).
'broad'+'side'='BROADSIDE'
'by' acts as a link.
Can you help me to learn more?
(Other definitions for broadside that I've seen before include "Full weight of (ship's) fire" , "A strong attack in words - or by old ship" , "Stick" , "Strongly critical verbal attack" , "Strong verbal attack on sideboard" .)