A weapon the peeler had? (4)
I believe the answer is:
epee
'a weapon' is the definition.
(I know that epee is a type of sword)
'the peeler had?' is the wordplay.
'had?' says the answer is hidden in the clue (I've seen 'having' mean this).
'EPEE' is hidden in the letters of 'the peeler'.
(Other definitions for epee that I've seen before include "It may offer riposte" , "Olympic event" , "Sharp-pointed duelling sword" , "Fencing sword, heavier than a foil" , "Bit of fencing" .)