Representative taking extremely tacky snap with pals at centre (7)
I believe the answer is:
typical
'representative' is the definition.
(similar in meaning)
'extremely tacky snap with pals at centre' is the wordplay.
'extremely' says to hollow out the word (remove centre letters) (letters on the extremes of the word are used).
'snap' becomes 'pic' (short for picture).
'with' says to put letters next to each other.
'at centre' indicates the central letters.
'tacky' with its centre taken out is 'ty'.
The middle letters of 'pals' are 'al'.
'ty'+'pic'+'al'='TYPICAL'
'taking' acts as a link.
(Other definitions for typical that I've seen before include "Having the essential characteristics of a group" , "Representitive, quintessential" , "Archetypal" , "routine" , "Representative, standard" .)