Bad temper noticed around place (6)
I believe the answer is:
spleen
'bad temper' is the definition.
(I've seen this before)
'noticed around place' is the wordplay.
'noticed' becomes 'seen' (I've seen this before).
'around' indicates putting letters inside.
'place' becomes 'pl' (I've seen this in other clues).
'seen' placed around 'pl' is 'SPLEEN'.
(Other definitions for spleen that I've seen before include "Abdominal organ - bad temper" , "Body organ or bad temper" , "Bodily organ associated with bad humour" , "Bodily organ associated with bad temper" , "Quick temper - body organ" .)