Withdrawing again before it turns round (8)
I believe the answer is:
retiring
'withdrawing' is the definition.
('retire' can be a synonym of 'withdraw')
'again before it turns round' is the wordplay.
'again' becomes 're' (prefix meaning 'again').
'before' means one lot of letters go next to another.
'turns' shows that the letters should be reversed in order.
'round' becomes 'ring' (synonyms).
'it' backwards is 'ti'.
're'+'ti'+'ring'='RETIRING'
(Other definitions for retiring that I've seen before include "Like an unassertive person" , "of unobtrusive aspect" , "taking clothes off etc?" , "Shunning contact with others" , "Bashful" .)