Stolen mobile found after tea dance (10)
I believe the answer is:
charleston
'dance' is the definition.
(I know that Charleston is a dance)
'stolen mobile found after tea' is the wordplay.
'mobile' indicates anagramming the letters.
'found after' means one lot of letters go next to another.
'tea' becomes 'char' (I've seen this before).
'stolen' is an anagram of 'leston'.
'leston' put after 'char' is 'CHARLESTON'.
(Other definitions for charleston that I've seen before include "Lively 1920s' dance" , "Nineteen twenties dance" , "US city - 1920s' dance" , "American port" , "Lively dance - then carols (anag)" .)