Summon social worker to the show (7)
I believe the answer is:
pageant
'the show' is the definition.
(thesaurus)
'summon social worker' is the wordplay.
'summon' becomes 'page' (paging is a kind of summoning**).
'social worker' becomes 'ant' (I've seen this before).
'page'+'ant'='PAGEANT'
'to' is the link.
(Other definitions for pageant that I've seen before include "Show" , "Spectacular parade" , "Colourful display or parade" , "Tableaux or dramatic scenes depicting historical events" , "Rich parade" .)