Mostly shout loudly to get hotel page? This one? (7)
I believe the answer is:
bellhop
'page? this one?' is the definition.
'bellhop' can be an answer for 'page?' (I've seen this before). I am not certain of the 'this one?' bit.
'mostly shout loudly to get hotel' is the wordplay.
I cannot quite understand how this works, but
'get' could be 'be' ('get' can mean 'come to be') and 'be' is located in the answer.
'hotel' could be 'h' (phonetic alphabet: alpha, bravo, charlie etc.) and 'h' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
(Other definitions for bellhop that I've seen before include "Hotel porter (US)" , "Hotel messenger" , "Hotel page" , "Errand boy and luggage carrier around hotels" , "Errand boy and luggage carrier in US hotels" .)