Seated outside clubs, Hughie emptied small bag (6)
I believe the answer is:
sachet
'small bag' is the definition.
(I've seen this before)
'seated outside clubs hughie emptied' is the wordplay.
'seated' becomes 'sat' ('sit' can be a synonym of 'seat').
'outside' indicates putting letters inside.
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'emptied' says to hollow out the word (remove centre letters).
'hughie' with its middle removed is 'he'.
'c'+'he'='che'
'sat' going around 'che' is 'SACHET'.
(Other definitions for sachet that I've seen before include "Small packet (of, eg, shampoo)" , "Small bag - chaste (anag)" , "Sealed plastic substance container" , "Small bag or packet" , "Small sealed envelope" .)