### Clue: In agreement with social worker about working with boy at first (9)
### Answer: CONSONANT 
 ### Explanation: In agreement with social worker about working with boy at first (9)
**ANT** ("social worker") with **C** (circa, so "about") + **ON** ("working") *with* **SON** ("boy") *at first*, so **C-ON-SON-ANT