Entering street, the Spanish charge again (6)
I believe the answer is:
reload
'charge again' is the definition.
('load' is an answer for 'charge' so perhaps 'reload' is OK for 'charge again')
'entering street the spanish' is the wordplay.
'entering' means one lot of letters goes inside another.
'street' becomes 'road' (I've seen this before).
'the spanish' becomes 'el'.
'road' placed around 'el' is 'RELOAD'.
(Other definitions for reload that I've seen before include "Put bullet in gun - again" , "Prepare to fire again" , "pack, once more" , "Fill (a gun) again" , "Put new ammunition in gun" .)