More attractive female's left clothes horse (5)
I believe the answer is:
airer
'clothes horse' is the definition.
(I've seen this before)
'more attractive female's left' is the wordplay.
'more attractive' becomes 'fairer' ('fair' can be a synonym of 'attractive').
'female' becomes 'f' (common abbreviation).
'left' is a deletion indicator (some letters have left).
'fairer' with 'f' removed is 'AIRER'.
(Other definitions for airer that I've seen before include "Frame to dry laundry" , "Clothes horse" , "Clothes-drying frame" , "Frame on which clothes are dried" , "Dryer" .)