I hand over beer in metric weight for African challenger? (11)
I believe the answer is:
kilimanjaro
'african challenger?' is the definition.
(African mountain climbed as a challenge)
'i hand over beer in metric weight' is the wordplay.
'hand' becomes 'man' (both can mean a worker).
'over' is a charade indicator (letters next to each other).
'beer' becomes 'jar' (I've seen this before).
'in' means one lot of letters goes inside another.
'metric weight' becomes 'kilo' (kilogram).
'i'+'man'+'jar'='imanjar'
'imanjar' placed within 'kilo' is 'KILIMANJARO'.
'for' is the link.
(Other definitions for kilimanjaro that I've seen before include "African mountain with snows" , "Highest mountain in Africa" , "Africa's highest peak" , "Highest peak of Africa" , "Extinct volcano in Tanzania" .)