Anagrams of: OVERLEAVENING

• work out

• undergo development or evolution

• gain through experience

• rate of revolution of a motor

• increase the number of rotations per minute

• connect closely and often incriminatingly

• engage as a participant

• have as a necessary feature

• require as useful, just, or proper

• contain as a part

• occupy or engage the interest of

• make complex or intricate or complicated

• showing or making known

• the speech act of making something evident

• disclosing unintentionally something concealed