Series of peaks cameraman finally captured in storm (5)
I believe the answer is:
range
'series of peaks' is the definition.
(mountain range)
'cameraman finally captured in storm' is the wordplay.
'cameraman finally' becomes 'n' (I can't justify this - if you can you should give a lot more credence to this answer).
'captured in' is an insertion indicator.
'storm' becomes 'rage' (synonyms).
'n' placed into 'rage' is 'RANGE'.
Can you help me to learn more?
(Other definitions for range that I've seen before include "Prairie" , "Set in a row" , "Oven" , "cover a certain area" , "Aga or mountain, perhaps?" .)