"covert for" is not grammatically correct and is not a common phrase in written English.
It is possible that you may have meant "cover for," which means to provide an excuse or alibi for someone or to protect them from blame or consequences. Here is an example of how it could be used in a sentence: "I can't go to the party tonight, can you cover for me with our friends?".
Their e-mail was all the more covert for being sent from only a few yards away.
"It was covert for a good chunk of the time he spent working on it," Ray Hulser, a supervisor in the Public Integrity Section, told me.
On the other hand, secrecy is sometimes essential because some things have to be covert – for example activities necessary to ensure the safety of citizens.
He described it as a "covert activity so nothing that we do under equipment interference would cause any damage or leave any trace, otherwise it would not remain covert for very long".
Grand Canyon's audacious proposal to become the latest "covert for-profit" offended the sensibilities of the accreditor, but its proposal to get better tax treatment than other corporations apparently is just fine with top Arizona legislators.
Sireli Naqelevuki then powered his way past three Welsh players before sending Jess clear for their second try and Mieres duly coverted for the second time.
Blackwater became a multimillion-dollar contractor as the United States escalated wars in Iraq and Afghanistan, providing protection for State Department officials and covert work for the Central Intelligence Agency.
THE Inter-Services Intelligence directorate (ISI), Pakistan's notorious military spooks, deserve credit for the audacity of their covert support for the Taliban, the enemy of Pakistan's greatest ally.
In particular, modulation was stronger for overt attention than for covert attention, and stronger for Hex-o-Spell than for the Matrix.
The difference in performance between Matrix and Hex-o-Spell is larger for covert attention than for overt attention (Speller × Attention, F 1,12) = 8.443).
Feld employed former CIA deputy director of covert operations for the CIA -- Clair George for a little hanky-panky -- and the circus act began, Tah-dah!
