Shot drunk by good friend, broadly speaking (8)
I believe the answer is:
globally
'broadly speaking' is the definition.
Both the answer and definition are adverbs.
Maybe you can see an association between them that I can't see?
'shot drunk by good friend' is the wordplay.
'shot' becomes 'lob' (type of shot in eg tennis).
'drunk by' indicates putting letters inside.
'good' becomes 'g' (abbreviation).
'friend' becomes 'ally' (an ally is a friend or supporter).
'g'+'ally'='gally'
'lob' placed within 'gally' is 'GLOBALLY'.
Can you help me to learn more?
(Other definitions for globally that I've seen before include "Universally" , "Worldwide" , "all round the world" , "Across the whole world" .)