Hairy nude carrying a little weight — not that impressed! (6)
I believe the answer is:
unawed
'not that impressed' is the definition.
(awed means impressed or intimidated)
'hairy nude carrying a little weight' is the wordplay.
'hairy' indicates an anagram (hairy can mean difficult or tricky).
'carrying' is an insertion indicator.
'little' indicates taking the first letters.
The first letter of 'weight' is 'w'.
'nude' is an anagram of 'uned'.
'a'+'w'='aw'
'uned' placed around 'aw' is 'UNAWED'.
(Other definitions for unawed that I've seen before include "not struck?" , "Blase, unimpressed" , "with no trepidation" .)