When one's knocked about, it does give one experience (6)
I believe the answer is:
season
'give one experience' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'when one's knocked about it' is the wordplay.
'when' becomes 'as' (eg 'when I walked' means 'as I walked').
'knocked' indicates anagramming the letters.
'about it' means one lot of letters goes inside another.
'ones' with letters rearranged gives 'seon'.
'as' placed into 'seon' is 'SEASON'.
'does' is the link.
Can you help me to learn more?
(Other definitions for season that I've seen before include "' - - of mists ...' (Keats)" , "Period of a year" , "Add salt, pepper, spice etc" , "eg.Summer" , "To dry (wood) for use as timber" .)