Peak and nadir of Stephen Fry? (5)

I believe the answer is:

brown

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'nadir of stephen fry?' is the definition.
'brown' can be an answer for 'fry?' (thesaurus). I am unsure of the 'nadir of stephen' bit.

'peak and' is the wordplay.
'peak' becomes 'brow' (brow is a kind of peak).
'and' becomes 'n' (common abbreviation for 'and').
'brow'+'n'='BROWN'

Can you help me to learn more?

(Other definitions for brown that I've seen before include "Labour PM, b. 1951" , "Prime Minister, 2007-2010" , "Colour; ex-PM" , "cook to a rich colour?" , "Dark - tanned - successor to Blair?" .)

I've seen this clue in The Independent.

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