Metal drummers employed in such an ensemble? (5,4)
I believe the answer is:
steel band
'metal drummers' is the definition.
'steel band' can be an answer for 'drummers' (I've seen this before). I'm not certain of the 'metal' bit.
'employed in such an ensemble?' is the wordplay.
'employed in such' becomes 'steel' (I can't explain this - if you can you should believe this answer much more).
'an ensemble?' becomes 'band' (I've seen this in another clue).
'steel'+'band'='STEEL BAND'
Can you help me to learn more?
(Other definitions for steel band that I've seen before include "Musicians playing oil drums" , "percussionists" , "(Players of) improvised drums" , "Caribbean group" , "drummers" .)