Consult match official here in middle (5)
I believe the answer is:
refer
'consult' is the definition.
(I've seen this before)
'match official here in middle' is the wordplay.
'match official' becomes 'ref' (referee).
'in middle' indicates the central letters.
The centre of 'here' is 'er'.
'ref'+'er'='REFER'
(Other definitions for refer that I've seen before include "Bring up" , "Make allusion, or turn to for information" , "Mention, cite" , "Allude (to something)" , "Make allusion, direct attention with words" .)