Group offering some light on airship (3,8)
I believe the answer is:
led zeppelin
'group' is the definition.
(rock band)
'some light on airship' is the wordplay.
'some light' becomes 'led' (abbreviation for light emitting diode).
'on' says to put letters next to each other.
'airship' becomes 'zeppelin' (zeppelin is a kind of airship).
'led'+'zeppelin'='LED ZEPPELIN'
'offering' acts as a link.
(Other definitions for led zeppelin that I've seen before include "Rock group with vocalist Robert Plant" , "Band" , "English heavy metal group, founded 1968" .)