Meaning of “deal with sth” - Learner’s Dictionary

deal with sth

phrasal verb with deal uk us /diːl/ verb [ I, T ] (past tense and past participle dealt)

B1 to take action in order to achieve something or to solve a problem:

Can you deal with this gentleman's complaint?
The government must deal with unemployment.

to be about a particular subject:

(Definition of “deal with sth” from the Cambridge Learner’s Dictionary © Cambridge University Press)