Photographs capturing Queen's clothing (6)
I believe the answer is:
shorts
'clothing' is the definition.
(shorts is a kind of clothing)
'photographs capturing queen's' is the wordplay.
'photographs' becomes 'shots' (shot is a kind of photograph).
'capturing' means one lot of letters goes inside another.
'queen' becomes 'r' (r is abbreviation regina. e.g. in ER ).
'shots' going around 'r' is 'SHORTS'.
(Other definitions for shorts that I've seen before include "bottom gear" , "Trousers that end at or above the knee" , "Boxers" , "Cut-off trousers" , "Garment" .)