What about grabbing old garden tool? (3)
I believe the answer is:
hoe
'garden tool?' is the definition.
(tool used when gardening)
'what about grabbing old' is the wordplay.
'what' becomes 'eh' (sound used to ask 'what?' or 'pardon?').
'about' is a reversal indicator.
'grabbing' means one lot of letters goes inside another.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'eh' in reverse letter order is 'he'.
'he' going around 'o' is 'HOE'.
(Other definitions for hoe that I've seen before include "Tool; promontory" , "Garden implement" , "Attend to beds" , "Tool for loosening soil and scraping up weeds" , "Garden tool with a flat blade" .)