Stolen deposit causes tricky situation (3,4)
I believe the answer is:
hot seat
'tricky situation' is the definition.
(I've seen this before)
'stolen deposit' is the wordplay.
'stolen' becomes 'hot' (stolen goods are 'hot').
'deposit' becomes 'seat' (I can't explain this - if you can you should give a lot more credence to this answer).
'hot'+'seat'='HOT SEAT'
'causes' acts as a link.
Can you help me to learn more?
(Other definitions for hot seat that I've seen before include "Position of full responsibility (colloq.)" , "Eat host In position of person with difficult responsibilities." , "Hates to be in difficult position" , "from which bottom quick to rise?" , "new constituency" .)