A photo capturing starter of strawberry jelly (5)
I believe the answer is:
aspic
'jelly' is the definition.
(aspic is a kind of jelly)
'a photo capturing starter of strawberry' is the wordplay.
'photo' becomes 'pic' (I've seen this before).
'capturing' means one lot of letters goes inside another.
'starter of' says to take the initial letters.
The first letter of 'strawberry' is 's'.
'a'+'pic'='apic'
'apic' placed around 's' is 'ASPIC'.
(Other definitions for aspic that I've seen before include "Savoury relish" , "Savoury jelly for coating meats and eggs" , "that's clear?" , "Edible jelly" , "Preservative jelly" .)