Shot at Lord’s gardener’s head with old weapon (6)
I believe the answer is:
glance
'shot at lord's' is the definition.
'glance' can be an answer for 'shot' (I've seen this before). I'm not certain of the 'at lord's' bit.
'gardener's head with old weapon' is the wordplay.
'head' suggests taking the first letters.
'with' is a charade indicator (letters next to each other).
'old weapon' becomes 'lance' (I've seen this in another clue).
The initial letter of 'gardeners' is 'g'.
'g'+'lance'='GLANCE'
Can you help me to learn more?
(Other definitions for glance that I've seen before include "Butcher" , "Glimpse" , "fly off" , "Momentary look" , "black shiny stuff" .)