Reappoint departing PTA members and get them involved (4,2)
I believe the answer is:
rope in
'reappoint departing pta members' is the definition.
I can't judge whether this definition defines the answer.
'get them involved' is the wordplay.
'get' says to put letters next to each other.
'them' becomes 'rope' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'involved' becomes 'in' (to be involved in something is to be 'in' it).
'rope' next to 'in' is 'ROPE IN'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for rope in that I've seen before include "Engage" , "Enlist" , "dragoon" , "Persuade someone to take part in something" .)