Hot red sauce (7)
'hot red sauce' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for tabasco that I've seen before include "Mexican state; pungent sauce" , "Mexico state" , "Red pepper sauce" , "Hot peppery sauce" , "Hot sauce made from capsicums" .)
(Other definitions for ketchup that I've seen before include "Spicy tomato sauce" , "Sauce made largely of tomatoes" , "Piquant sauce, often tomato based" , "Relish" , "Thick sauce, with tomatoes" .)
(Other definitions for harissa that I've seen before include "Hot paste used in North African cuisine -- ass hair (anag)" , "Hot North African sauce" , "Spicy sauce" .)
(Other definitions for cayenne that I've seen before include "Capital of French Guiana - spicy red pepper" , "Pungent red pepper" , "South American capital" , "something spicy" , "Spice from dried chillis" .)
(Another definition for rouille that I've seen is " Sauce".)