Sort of photographing simple tea being cooked (4-5)
I believe the answer is:
time-lapse
'sort of photographing' is the definition.
I know nothing about this answer so I cannot judge whether this works.
'simple tea being cooked' is the wordplay.
'being cooked' is an anagram indicator (letters cooked into a new form).
'simple'+'tea'='simpletea'
'simpletea' is an anagram of 'TIME-LAPSE'.
Can you help me to learn more?
(Other definitions for time-lapse that I've seen before include "Kind of cinematic technique for showing a slow process at an accelerated pace" , "Photographic technique to show very slow processes in motion" , "Photography technique" .)