Put under financial pressure, stop being crooked, we hear (8)
I believe the answer is:
straiten
'stop being crooked we hear' is the definition.
I can't tell whether this defines the answer.
'put under financial pressure' is the wordplay.
'put' means one lot of letters goes inside another.
'under financial' becomes 'te' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'pressure' becomes 'strain' (I've seen this before).
'te' inserted inside 'strain' is 'STRAITEN'.
Can you help me to learn more?
(Other definitions for straiten that I've seen before include "distress" , "Restrict" , "Limit" , "Train set (anag.)" .)