Blue animal seen around Central America (6)
I believe the answer is:
morose
'blue' is the definition.
(blue can mean sad)
'animal seen around central america' is the wordplay.
'animal' becomes 'moose' (type of animal).
'seen around' means one lot of letters goes inside another.
'central' means to look at the middle letters.
The central letter of 'america' is 'r'.
'moose' placed around 'r' is 'MOROSE'.
(Other definitions for morose that I've seen before include "Surly and unforthcoming" , "Moody, glum" , "in gloomy mood" , "Sullen and ill-tempered" , "Sullen and gloomy" .)