### Clue: Posters about defining feature of lingerie (10)
### Answer: SUSPENDERS 
 ### Explanation: Definition: lingerie
 SENDERS(posters;people who send letters, etc. by post) **containing**(about) USP(acronym for "Unique Selling Proposition or Point", the benefit which is a feature of a company, service, product or brand that differentiates;defines it compared to others.
Defn: …, in the sense of female underwear rather than sexy nightwear.
Answer: Belts used to hold up;suspend stockings, preventing them from slipping. As such, their usage now, besides being functional and fashionable, includes an erotic element.