Dictator's tax enlarged Bank of America? (5)
I believe the answer is:
levee
'dictator's tax enlarged bank of america?' is the definition.
I can't tell whether this defines the answer.
'dictator's tax' is the wordplay.
'dictator's' indicates a 'sounds like' (homophone) clue (as somebody dictating would pronounce the word).
'tax' becomes 'levy' (I've seen this before).
'levy' is a homophone of 'LEVEE'.
Can you help me to learn more?
(Other definitions for levee that I've seen before include "Embankment that should prevent flooding" , "Embankment holding water back" , "Riverside embankment" , "River bank reinforcement, particularly in the US" , "Morning reception once held by monarch" .)