She washes Los Angeles strip (9)
I believe the answer is:
laundress
'she washes' is the definition.
(I've seen this before)
'los angeles strip' is the wordplay.
'los angeles' becomes 'LA' (abbreviation).
'strip' becomes 'undress' (synonyms).
'la'+'undress'='LAUNDRESS'
(Other definitions for laundress that I've seen before include "Woman who washes clothes for a living" , "Cleaner" , "Disguise for jailbreaker in famous tale" , "She'll clean" , "Washerwoman" .)