take-no-pris·on·ers (tāk'nō-prĭz'ə-nərz, -prĭz'nərz)adj.
Extremely ardent or aggressive: “a take-no-prisoners arrogance that alienates others” (Time).

Be all and end all or be-all and end-all 

The quintessential or all-important element: "Not that the more spectacular athleticism is the be all and end all of free skating. Spins . . . and intricate step sequences are also important" (Howard Bass).

Danseuse - A female ballet dancer, ballerina

 

Austerity - The trait of great self-denial (especially refraining from worldly pleasures), asceticism

Prerogative - A right reserved exclusively by a particular person or group (especially a hereditary or official right)

 

Coterie - A group of people who share a common interest or goal; clique

 

Clique - An exclusive group of people.

Clandestine (adj.)- Secret, surreptitious, stealthy, conducted with or marked by hidden claims or methods.

 

Abject - miserable, wretched, Of the most contemptible kind, Showing humiliation or submissiveness, Showing utter resignation or hopelessness

 

Adroit (adj.)- Skillful (or showing skill) in adapting means to ends , Quick or skillful or adept in action or thought

 

Maven (n) - Adept, one who is highly skilled

 

Dexterity - Adroitness in using the hands, mental adroitness, agility

 

Nimbleness - The gracefulness of a person or animal that is quick and nimble(agile, graceful,  sharp, keen, perceptive)

Gaga - Senile, slightly crazy

 

Citadel - fortress, usually on a high ground, protecting a city.

 

Pensive - Thoughtful, musing, meditative

 

Pep Talk - Encouragement speech

Placebo - Harmless, unmedicated preparation given as a medicine to a patient merely to humour him.

Juggernaut- (n) A massive inexorable force that seems to crush everything in its way, something which requires blind devotion or cruel sacrifice.

Inexorable - immovable, unbending, not changeable