Player is inspired by emotionless type, but no leader (6)
I believe the answer is:
oboist
'player' is the definition.
(oboe player)
'is inspired by emotionless type but no leader' is the wordplay.
'inspired by' indicates putting letters inside (some letters breathed in or 'inspired' by others).
'emotionless type' becomes 'robot' (robot can mean someone displaying no emotions).
'but no leader' means to remove the first letter.
'robot' with its initial letter removed is 'obot'.
'is' inserted within 'obot' is 'OBOIST'.
(Other definitions for oboist that I've seen before include "Wind player" , "Instrumentalist" , "Musician who plays woodwind of treble pitch" , "Player of woodwind instrument of treble pitch" , "orchestra member" .)