The term 'SECRET TARGET' can be broken down into three crossword solutions: ARMPIT (6 letters), UNDERARM (8 letters), and ODOR (4 letters). The ARMPIT is the area of the body located between the shoulder and the elbow, and it is a common site for sweat glands. The UNDERARM is the area of the body directly beneath the ARMPIT, and it is also a common site for sweat glands. ODOR is a smell, and it is often associated with sweat. Therefore, the term 'SECRET TARGET' could refer to the ARMPIT and UNDERARM areas of the body, which are known to produce sweat and odors.