I do various moves holding power weights (11)
I believe the answer is:
avoirdupois
'i do various moves holding power weights' is the definition.
I can't tell whether this defines the answer.
'i do various moves holding power' is the wordplay.
'moves' indicates anagramming the letters.
'holding' means one lot of letters goes inside another.
'power' becomes 'p'.
'i'+'do'+'various'='idovarious'
'idovarious' is an anagram of 'avoirduois'.
'avoirduois' placed around 'p' is 'AVOIRDUPOIS'.
Can you help me to learn more?
(Other definitions for avoirdupois that I've seen before include "Non-metric system of weights" , "sort of weight" , "Pounds/ounces system of weights" , "Imperial system of weights - unwanted fat" .)