Aggrieved about hotel in coastal area (5)
I believe the answer is:
shore
'coastal area' is the definition.
(I've seen this in another clue)
'aggrieved about hotel' is the wordplay.
'aggrieved' becomes 'sore' (I've seen this in another clue).
'about' indicates putting letters inside.
'hotel' becomes 'h' (phonetic alphabet).
'sore' enclosing 'h' is 'SHORE'.
'in' is the link.
(Other definitions for shore that I've seen before include "Land by sea's edge" , "Beam" , "support being only temporary?" , "Horse (anag.)" , "Country" .)