Can be relied upon to provide accommodation (6)
I believe the answer is:
stable
'accommodation' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'can be relied upon' is the wordplay.
'can' becomes 'able' (I've seen this before).
'be relied' becomes 'st' (I can't justify this - if you can you should give a lot more credence to this answer).
'upon' is a charade indicator (letters next to each other).
'able' put after 'st' is 'STABLE'.
'to provide' is the link.
Can you help me to learn more?
(Other definitions for stable that I've seen before include "Steady, enduring" , "Immutable" , "'Steady, not given to sudden change (6)'" , "Lasting" , "Bleats (anag)" .)