Crossword Genius

A tribe in grand turmoil show fortitude (4,3,4,2)

Ross

I believe the answer is:

grin and bear it

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

'fortitude' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'a tribe in grand turmoil' is the wordplay.
'turmoil' indicates an anagram (I've seen this in other clues).
'a'+'tribe'+'in'+'grand'='atribeingrand'
'atribeingrand' with letters rearranged gives 'GRIN AND BEAR IT'.

'show' acts as a link.

Can you help me to learn more?

(Other definitions for grin and bear it that I've seen before include "Accept stoically" , "Endure misfortune stoically" , "Be stoical" , "Suffer hardship without complaint" , "like the Cheshire Cat carrying a message?" .)

I've seen this clue in The Globe and Mail.
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