Answer: specialised

AnswerCrossword Clue
specialisedConcentrate on and become expert in a particular subject or skill
specialisedSPECIALISE, to make special or specific
specialisedAdapt or set apart (an organ or part) to serve a special function or to suit a particular way of life
specialisedMake a habit of engaging in a particular activity
specialisedConfine oneself to providing a particular product or service