Pessimistic, for example, in domestic surroundings (8)
I believe the answer is:
negative
'pessimistic' is the definition.
(associated in meaning)
'example in domestic surroundings' is the wordplay.
'example' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'in domestic' becomes 'native' (similar in meaning. I am not sure about the 'in' bit.).
'surroundings' is an insertion indicator.
'eg' placed into 'native' is 'NEGATIVE'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for negative that I've seen before include "Expressing or implying denial or refusal" , "Less than positive" , "The photographic film expresses refusal" , "Defeatist" , "Piece of photographic film" .)