Answer: developing

AnswerCrossword Clue
DEVELOPINGDarkroom activity
DEVELOPINGMusically elaborating on Democratic first lady running (10)
developingConstruct or convert (a building) so as to improve existing resources
developingExpand (a function, etc.) in the form of a series
developing(of a poor agricultural country) Become more economically and socially advanced
developingElaborate (a musical theme) by modification of the melody, harmony, or rhythm
developingConvert (land) to a new purpose by constructing buildings or making other use of its resources
developingConvert (a curved surface) conceptually into a plane figure as if by unrolling
developingGrow or cause to grow and become more mature, advanced, or elaborate
developingDEVELOP, to bring to a more advanced state, also DEVELOPE
developingTreat (a photographic film) with chemicals to make a visible image
developingBring (a piece) into play from its initial position on a player's back rank
developingStart to exist, experience, or possess