Glad as bed is moved, revealing pouch by seat (9)
I believe the answer is:
saddlebag
'pouch by seat' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'glad as bed is moved' is the wordplay.
'is moved' indicates an anagram.
'glad'+'as'+'bed'='gladasbed'
'gladasbed' anagrammed gives 'SADDLEBAG'.
'revealing' is the link.
Can you help me to learn more?
(Other definitions for saddlebag that I've seen before include "Storage for riders" , "one lying over the wheel?" , "bike accessory" , "Something used to carry items when riding" , "storage place for bicycles" .)