Stupid way programme ends? (5)

I believe the answer is:

inane

I'm a little stuck... Click here to teach me more about this clue!

'stupid' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

(Other definitions for inane that I've seen before include "Devoid of intelligence" , "Foolish, fatuous" , "Stupid and silly" , "unimaginative" , "Silly or senseless" .)

I've seen this clue in The Times.

Want a hint initially instead of a full solution? Install my app