Wrote of a new design to protect extremities (8)
I believe the answer is:
footwear
'design to protect extremities' is the definition.
I can't tell whether this defines the answer.
'wrote of a new' is the wordplay.
'new' indicates anagramming the letters.
'wrote'+'of'+'a'='wroteofa'
'wroteofa' with letters rearranged gives 'FOOTWEAR'.
Can you help me to learn more?
(Other definitions for footwear that I've seen before include "Oxford maybe" , "Shoes, boots, sandals etc" , "Boots, shoes, slippers etc" , "Sandals, e.g." , "Sandals and slippers" .)