Fish touristy restaurants originally included in meal? (5)
I believe the answer is:
Here is my best explanation:
'fish' is the definition.
(tetra is a kind of fish)
'touristy restaurants originally included in meal?' is the subsidiary indication.
'originally' says to take the initial letters.
'included in' means one lot of letters goes inside another.
'meal?' becomes 'tea' (tea is a kind of meal).
The initial letters of 'touristy restaurants' is 'tr'.
'tr' put within 'tea' is 'tetra'.
(Other definitions for tetra that I've seen before include "Wrongful act (Law)", "Tropical fish", "Small bright fish", "Accosting and detaining (someone)", "Small tropical fish", "Denoting four (prefix)", "starter for four", "This indicates a group of four", "With four parts" and "rarely seen flower".)