They get pressed going into The Houses to upset cross types employed in hotel receptions (9)

'employed in hotel receptions' is the definition.
Although both the answer and definition are plural nouns, I don't understand how they can define each other.

'they get pressed going into the houses to upset cross types' is the wordplay.
I cannot quite understand how this works, but
'get' could be 'be' ('get' can mean 'come to be') and 'be' is found within the answer.
'cross' could be 'door' (a door is a kind of cross) and 'door' is found in the answer.
This may be the basis of clue (or it may be nonsense).

Can you help me to learn more?