Figure disappeared in outskirts of Torquay (6)
I believe the answer is:
twenty
'figure' is the definition.
(I've seen this before)
'disappeared in outskirts of torquay' is the wordplay.
'disappeared' becomes 'went' (I've seen this before).
'in' is an insertion indicator.
'outskirts of' means to remove the middle letters (only letters on the outskirts).
'torquay' with its middle removed is 'ty'.
'went' going within 'ty' is 'TWENTY'.
(Other definitions for twenty that I've seen before include "Cardinal" , "Number" , "This twice denotes normal vision" , "No longer a teenager" , "Score, XX" .)