Saint given a new suit at the civic centre (5)
I believe the answer is:
vitus
'saint' is the definition.
(I know that Vitus is a saint)
'a new suit at the civic centre' is the wordplay.
'a new' indicates an anagram.
'at' means one lot of letters go next to another (I've seen this in other clues).
'centre' means to look at the middle letters.
The centre of 'civic' is 'v'.
'suit' anagrammed gives 'itus'.
'itus' put after 'v' is 'VITUS'.
'given' is the link.
(Other definitions for vitus that I've seen before include "Saint (with a pathological dance)" , "Saint whose dance is a disease" , "Saint giving name to "dance"" .)