The term 'ONES UP IN ARMS' can be summarized by two crossword solutions: ULNAS and BABES. ULNAS is an acronym for Upper Limb Neuro-muscular Assessment Scale, which is a tool used to measure the strength of the upper limbs IN people with neurological conditions. BABES is an acronym for Babies and Toddlers Early Support, which is a program that provides early intervention services to children with developmental delays or disabilities.