No-frills; fundamental (5)

I believe the answer is:

basic

I believe this is a double definition.

'no-frills' is the first definition.
(I've seen this in another clue)

'fundamental' is the second definition.
(similar in meaning)

(Other definitions for basic that I've seen before include "Fundamental, elementary" , "Fundamental or rudimentary" , "Straightforward" , "Radical" , "Without frills" .)

I've seen this clue in the Sydney Morning Herald.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.