Hated having to transfer the load (7)
I believe the answer is:
loathed
'hated' is the definition.
(loathing is a kind of hating)
'to transfer the load' is the wordplay.
'to transfer' indicates anagramming the letters (I've seen this in other clues).
'the'+'load'='theload'
'theload' with letters rearranged gives 'LOATHED'.
'having' acts as a link.
(Other definitions for loathed that I've seen before include "'Abhorred, detested (7)'" , "Cordially detested" , "Regarded with disgust and hatred" , "Detested and abominated" , "Hated" .)