Hamper not going north with polar explorer (10)
I believe the answer is:
shackleton
'polar explorer' is the definition.
(Ernest Shackleton)
'hamper not going north' is the wordplay.
'hamper' becomes 'shackle' ('shackle' can be a synonym of 'hamper').
'going north' says the letters should be written in reverse.
'not' backwards is 'ton'.
'shackle'+'ton'='SHACKLETON'
'with' acts as a link.
(Other definitions for shackleton that I've seen before include "heroic figure" , "Polar explorer" , "Sir Ernest -, Irish-born Antarctic explorer" .)