Crossword Genius

In truth, rivers do well (6)

Ross

I believe the answer is:

thrive

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

'in truth rivers' is the wordplay.
'in' indicates a hidden word.
'THRIVE' can be found hidden inside 'truth rivers'.

(Other definitions for thrive that I've seen before include "Develop well" , "Grow strongly" , "Succeed" , "Hit rev in order to prosper" , "Grow vigorously, flourish" .)

I've seen this clue in The Telegraph.
Want a hint initially instead of a full solution? Install my app