Related Clues:
- Leverage
- Struck hard, as with the fist
- 'Ne'er cast a... till May be out'
- Blow to the head
- Cast not one before May is out
- After a century and a half one may get struck by not getting in over the editor
- What a blow for the oaf after a century
- Not in a century and a half at last, blow it!
- To strike like this won't get it in the end
- A century and a half not in the blow
- What a blow not to be within a century and a half
- Behold what's in the wound from the blow
- Influence ... and a hint to 20-, 26-, 46- and 56-Across
- Powerful influence
- Influence cast after May 31