Have a go at attack after United lead (7)
I believe the answer is:
upbraid
'have a' is the definition.
I can't judge whether this definition defines the answer.
'at attack after united lead' is the wordplay.
'at' means one lot of letters go next to another.
'attack' becomes 'raid' (raid is a kind of attack).
'after' means one lot of letters go next to another.
'united' becomes 'U' (abbreviation as in Man U for Manchester United).
'lead' becomes 'Pb' (Pb is the chemical symbol for lead).
'u'+'pb' is 'upb'.
'raid' after 'upb' is 'UPBRAID'.
'go' is the link.
Can you help me to learn more?
(Other definitions for upbraid that I've seen before include "Find fault with" , "Criticise or scold" , "Dress down" , "Scold, reproach" , "Reproach strongly over arid pub" .)