Range of staple food heading for this hotel (7)
I believe the answer is:
breadth
'range' is the definition.
(I have seen 'Wide range ' mean 'breadth' so perhaps 'range' could also mean 'breadth')
'staple food heading for this hotel' is the wordplay.
'staple food' becomes 'bread' (I've seen this before).
'heading for' says to take the initial letters.
The first letters of 'this hotel' is 'th'.
'bread'+'th'='BREADTH'
'of' is the link.
(Other definitions for breadth that I've seen before include "Measure" , "Extent from side to side" , "Red bath (anag)" , "Liberality" , "Measurement from side to side" .)