Athlete peevishly clutching his weapon? (4)
I believe the answer is:
epee
'his weapon?' is the definition.
'epee' can be an answer for 'weapon?' (epee is a kind of weapon). I'm not sure about the 'his' bit.
'athlete peevishly clutching' is the wordplay.
'clutching' indicates a hidden word.
'EPEE' can be found hidden inside 'athlete peevishly'.
Can you help me to learn more?
(Other definitions for epee that I've seen before include "Duelling weapon" , "Fencer's weapon" , "It may offer riposte" , "piece of fencing" , "Sharp-pointed duelling sword" .)